21115380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 52041228

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 23, 26, 30, 33, 39, 44, 46, 52, 55, 60, 65, 66, 69, 78, 92, 107, 110, 115, 130, 132, 138, 143, 156, 165, 195, 214, 220, 230, 253, 260, 276, 286, 299, 321, 330, 345, 390, 428, 429, 460, 506, 535, 572, 598, 642, 660, 690, 715, 759, 780, 858, 897, 1012, 1070, 1177, 1196, 1265, 1284, 1380, 1391, 1430, 1495, 1518, 1605, 1716, 1794, 2140, 2145, 2354, 2461, 2530, 2782, 2860, 2990, 3036, 3210, 3289, 3531, 3588, 3795, 4173, 4290, 4485, 4708, 4922, 5060, 5564, 5885, 5980, 6420, 6578, 6955, 7062, 7383, 7590, 8346, 8580, 8970, 9844, 9867, 11770, 12305, 13156, 13910, 14124, 14766, 15180, 15301, 16445, 16692, 17655, 17940, 19734, 20865, 23540, 24610, 27071, 27820, 29532, 30602, 31993, 32890, 35310, 36915, 39468, 41730, 45903, 49220, 49335, 54142, 61204, 63986, 65780, 70620, 73830, 76505, 81213, 83460, 91806, 95979, 98670, 108284, 127972, 135355, 147660, 153010, 159965, 162426, 183612, 191958, 197340, 229515, 270710, 306020, 319930, 324852, 351923, 383916, 406065, 459030, 479895, 541420, 639860, 703846, 812130, 918060, 959790, 1055769, 1407692, 1624260, 1759615, 1919580, 2111538, 3519230, 4223076, 5278845, 7038460, 10557690, 21115380]

約数ペア:

[(1, 21115380), (2, 10557690), (3, 7038460), (4, 5278845), (5, 4223076), (6, 3519230), (10, 2111538), (11, 1919580), (12, 1759615), (13, 1624260), (15, 1407692), (20, 1055769), (22, 959790), (23, 918060), (26, 812130), (30, 703846), (33, 639860), (39, 541420), (44, 479895), (46, 459030), (52, 406065), (55, 383916), (60, 351923), (65, 324852), (66, 319930), (69, 306020), (78, 270710), (92, 229515), (107, 197340), (110, 191958), (115, 183612), (130, 162426), (132, 159965), (138, 153010), (143, 147660), (156, 135355), (165, 127972), (195, 108284), (214, 98670), (220, 95979), (230, 91806), (253, 83460), (260, 81213), (276, 76505), (286, 73830), (299, 70620), (321, 65780), (330, 63986), (345, 61204), (390, 54142), (428, 49335), (429, 49220), (460, 45903), (506, 41730), (535, 39468), (572, 36915), (598, 35310), (642, 32890), (660, 31993), (690, 30602), (715, 29532), (759, 27820), (780, 27071), (858, 24610), (897, 23540), (1012, 20865), (1070, 19734), (1177, 17940), (1196, 17655), (1265, 16692), (1284, 16445), (1380, 15301), (1391, 15180), (1430, 14766), (1495, 14124), (1518, 13910), (1605, 13156), (1716, 12305), (1794, 11770), (2140, 9867), (2145, 9844), (2354, 8970), (2461, 8580), (2530, 8346), (2782, 7590), (2860, 7383), (2990, 7062), (3036, 6955), (3210, 6578), (3289, 6420), (3531, 5980), (3588, 5885), (3795, 5564), (4173, 5060), (4290, 4922), (4485, 4708)]