21175830

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2043

約数の個数: 80

約数和(自身を含む): 61349904

約数和(自身を除く): 40174074

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2011, 2106, 3510, 4022, 5265, 6033, 10055, 10530, 12066, 18099, 20110, 26143, 30165, 36198, 52286, 54297, 60330, 78429, 90495, 108594, 130715, 156858, 162891, 180990, 235287, 261430, 271485, 325782, 392145, 470574, 542970, 705861, 784290, 814455, 1176435, 1411722, 1628910, 2117583, 2352870, 3529305, 4235166, 7058610, 10587915, 21175830]

約数ペア:

[(1, 21175830), (2, 10587915), (3, 7058610), (5, 4235166), (6, 3529305), (9, 2352870), (10, 2117583), (13, 1628910), (15, 1411722), (18, 1176435), (26, 814455), (27, 784290), (30, 705861), (39, 542970), (45, 470574), (54, 392145), (65, 325782), (78, 271485), (81, 261430), (90, 235287), (117, 180990), (130, 162891), (135, 156858), (162, 130715), (195, 108594), (234, 90495), (270, 78429), (351, 60330), (390, 54297), (405, 52286), (585, 36198), (702, 30165), (810, 26143), (1053, 20110), (1170, 18099), (1755, 12066), (2011, 10530), (2106, 10055), (3510, 6033), (4022, 5265)]