21435156

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 56600544

約数和(自身を除く): 35165388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 61, 86, 122, 129, 172, 183, 227, 244, 258, 366, 387, 454, 516, 549, 681, 732, 774, 908, 1098, 1362, 1548, 2043, 2196, 2623, 2724, 4086, 5246, 7869, 8172, 9761, 10492, 13847, 15738, 19522, 23607, 27694, 29283, 31476, 39044, 41541, 47214, 55388, 58566, 83082, 87849, 94428, 117132, 124623, 166164, 175698, 249246, 351396, 498492, 595421, 1190842, 1786263, 2381684, 3572526, 5358789, 7145052, 10717578, 21435156]

約数ペア:

[(1, 21435156), (2, 10717578), (3, 7145052), (4, 5358789), (6, 3572526), (9, 2381684), (12, 1786263), (18, 1190842), (36, 595421), (43, 498492), (61, 351396), (86, 249246), (122, 175698), (129, 166164), (172, 124623), (183, 117132), (227, 94428), (244, 87849), (258, 83082), (366, 58566), (387, 55388), (454, 47214), (516, 41541), (549, 39044), (681, 31476), (732, 29283), (774, 27694), (908, 23607), (1098, 19522), (1362, 15738), (1548, 13847), (2043, 10492), (2196, 9761), (2623, 8172), (2724, 7869), (4086, 5246)]