21424260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 71322048

約数和(自身を除く): 49897788

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 121, 130, 132, 143, 156, 165, 195, 220, 227, 242, 260, 286, 330, 363, 390, 429, 454, 484, 572, 605, 660, 681, 715, 726, 780, 858, 908, 1135, 1210, 1362, 1430, 1452, 1573, 1716, 1815, 2145, 2270, 2420, 2497, 2724, 2860, 2951, 3146, 3405, 3630, 4290, 4540, 4719, 4994, 5902, 6292, 6810, 7260, 7491, 7865, 8580, 8853, 9438, 9988, 11804, 12485, 13620, 14755, 14982, 15730, 17706, 18876, 23595, 24970, 27467, 29510, 29964, 31460, 32461, 35412, 37455, 44265, 47190, 49940, 54934, 59020, 64922, 74910, 82401, 88530, 94380, 97383, 109868, 129844, 137335, 149820, 162305, 164802, 177060, 194766, 274670, 324610, 329604, 357071, 389532, 412005, 486915, 549340, 649220, 714142, 824010, 973830, 1071213, 1428284, 1648020, 1785355, 1947660, 2142426, 3570710, 4284852, 5356065, 7141420, 10712130, 21424260]

約数ペア:

[(1, 21424260), (2, 10712130), (3, 7141420), (4, 5356065), (5, 4284852), (6, 3570710), (10, 2142426), (11, 1947660), (12, 1785355), (13, 1648020), (15, 1428284), (20, 1071213), (22, 973830), (26, 824010), (30, 714142), (33, 649220), (39, 549340), (44, 486915), (52, 412005), (55, 389532), (60, 357071), (65, 329604), (66, 324610), (78, 274670), (110, 194766), (121, 177060), (130, 164802), (132, 162305), (143, 149820), (156, 137335), (165, 129844), (195, 109868), (220, 97383), (227, 94380), (242, 88530), (260, 82401), (286, 74910), (330, 64922), (363, 59020), (390, 54934), (429, 49940), (454, 47190), (484, 44265), (572, 37455), (605, 35412), (660, 32461), (681, 31460), (715, 29964), (726, 29510), (780, 27467), (858, 24970), (908, 23595), (1135, 18876), (1210, 17706), (1362, 15730), (1430, 14982), (1452, 14755), (1573, 13620), (1716, 12485), (1815, 11804), (2145, 9988), (2270, 9438), (2420, 8853), (2497, 8580), (2724, 7865), (2860, 7491), (2951, 7260), (3146, 6810), (3405, 6292), (3630, 5902), (4290, 4994), (4540, 4719)]