21141540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:96

約数の個数: 288

約数和(自身を含む): 82736640

約数和(自身を除く): 61595100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 47, 49, 51, 54, 60, 63, 68, 70, 84, 85, 90, 94, 98, 102, 105, 108, 119, 126, 135, 140, 141, 147, 153, 170, 180, 188, 189, 196, 204, 210, 235, 238, 245, 252, 255, 270, 282, 294, 306, 315, 329, 340, 357, 378, 420, 423, 441, 459, 470, 476, 490, 510, 540, 564, 588, 595, 612, 630, 658, 705, 714, 735, 756, 765, 799, 833, 846, 882, 918, 940, 945, 980, 987, 1020, 1071, 1190, 1260, 1269, 1316, 1323, 1410, 1428, 1470, 1530, 1598, 1645, 1666, 1692, 1764, 1785, 1836, 1890, 1974, 2115, 2142, 2205, 2295, 2303, 2380, 2397, 2499, 2538, 2646, 2820, 2940, 2961, 3060, 3196, 3213, 3290, 3332, 3570, 3780, 3948, 3995, 4165, 4230, 4284, 4410, 4590, 4606, 4794, 4935, 4998, 5076, 5292, 5355, 5593, 5922, 6345, 6426, 6580, 6615, 6909, 7140, 7191, 7497, 7990, 8330, 8460, 8820, 8883, 9180, 9212, 9588, 9870, 9996, 10710, 11186, 11515, 11844, 11985, 12495, 12690, 12852, 13230, 13818, 14382, 14805, 14994, 15980, 16065, 16660, 16779, 17766, 19740, 20727, 21420, 21573, 22372, 22491, 23030, 23970, 24990, 25380, 26460, 27636, 27965, 28764, 29610, 29988, 32130, 33558, 34545, 35532, 35955, 37485, 39151, 41454, 43146, 44415, 44982, 46060, 47940, 49980, 50337, 55930, 59220, 62181, 64260, 67116, 69090, 71910, 74970, 78302, 82908, 83895, 86292, 88830, 89964, 100674, 103635, 107865, 111860, 112455, 117453, 124362, 138180, 143820, 149940, 151011, 156604, 167790, 177660, 195755, 201348, 207270, 215730, 224910, 234906, 248724, 251685, 302022, 310905, 335580, 352359, 391510, 414540, 431460, 449820, 469812, 503370, 587265, 604044, 621810, 704718, 755055, 783020, 1006740, 1057077, 1174530, 1243620, 1409436, 1510110, 1761795, 2114154, 2349060, 3020220, 3523590, 4228308, 5285385, 7047180, 10570770, 21141540]

約数ペア:

[(1, 21141540), (2, 10570770), (3, 7047180), (4, 5285385), (5, 4228308), (6, 3523590), (7, 3020220), (9, 2349060), (10, 2114154), (12, 1761795), (14, 1510110), (15, 1409436), (17, 1243620), (18, 1174530), (20, 1057077), (21, 1006740), (27, 783020), (28, 755055), (30, 704718), (34, 621810), (35, 604044), (36, 587265), (42, 503370), (45, 469812), (47, 449820), (49, 431460), (51, 414540), (54, 391510), (60, 352359), (63, 335580), (68, 310905), (70, 302022), (84, 251685), (85, 248724), (90, 234906), (94, 224910), (98, 215730), (102, 207270), (105, 201348), (108, 195755), (119, 177660), (126, 167790), (135, 156604), (140, 151011), (141, 149940), (147, 143820), (153, 138180), (170, 124362), (180, 117453), (188, 112455), (189, 111860), (196, 107865), (204, 103635), (210, 100674), (235, 89964), (238, 88830), (245, 86292), (252, 83895), (255, 82908), (270, 78302), (282, 74970), (294, 71910), (306, 69090), (315, 67116), (329, 64260), (340, 62181), (357, 59220), (378, 55930), (420, 50337), (423, 49980), (441, 47940), (459, 46060), (470, 44982), (476, 44415), (490, 43146), (510, 41454), (540, 39151), (564, 37485), (588, 35955), (595, 35532), (612, 34545), (630, 33558), (658, 32130), (705, 29988), (714, 29610), (735, 28764), (756, 27965), (765, 27636), (799, 26460), (833, 25380), (846, 24990), (882, 23970), (918, 23030), (940, 22491), (945, 22372), (980, 21573), (987, 21420), (1020, 20727), (1071, 19740), (1190, 17766), (1260, 16779), (1269, 16660), (1316, 16065), (1323, 15980), (1410, 14994), (1428, 14805), (1470, 14382), (1530, 13818), (1598, 13230), (1645, 12852), (1666, 12690), (1692, 12495), (1764, 11985), (1785, 11844), (1836, 11515), (1890, 11186), (1974, 10710), (2115, 9996), (2142, 9870), (2205, 9588), (2295, 9212), (2303, 9180), (2380, 8883), (2397, 8820), (2499, 8460), (2538, 8330), (2646, 7990), (2820, 7497), (2940, 7191), (2961, 7140), (3060, 6909), (3196, 6615), (3213, 6580), (3290, 6426), (3332, 6345), (3570, 5922), (3780, 5593), (3948, 5355), (3995, 5292), (4165, 5076), (4230, 4998), (4284, 4935), (4410, 4794), (4590, 4606)]