21569490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 80

約数和(自身を含む): 59938560

約数和(自身を除く): 38369070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 810, 837, 859, 930, 1395, 1674, 1718, 2511, 2577, 2790, 4185, 4295, 5022, 5154, 7731, 8370, 8590, 12555, 12885, 15462, 23193, 25110, 25770, 26629, 38655, 46386, 53258, 69579, 77310, 79887, 115965, 133145, 139158, 159774, 231930, 239661, 266290, 347895, 399435, 479322, 695790, 718983, 798870, 1198305, 1437966, 2156949, 2396610, 3594915, 4313898, 7189830, 10784745, 21569490]

約数ペア:

[(1, 21569490), (2, 10784745), (3, 7189830), (5, 4313898), (6, 3594915), (9, 2396610), (10, 2156949), (15, 1437966), (18, 1198305), (27, 798870), (30, 718983), (31, 695790), (45, 479322), (54, 399435), (62, 347895), (81, 266290), (90, 239661), (93, 231930), (135, 159774), (155, 139158), (162, 133145), (186, 115965), (270, 79887), (279, 77310), (310, 69579), (405, 53258), (465, 46386), (558, 38655), (810, 26629), (837, 25770), (859, 25110), (930, 23193), (1395, 15462), (1674, 12885), (1718, 12555), (2511, 8590), (2577, 8370), (2790, 7731), (4185, 5154), (4295, 5022)]