21890538

素因数分解:

$2^1\times 3^2\times {\mathrm{101}}^1\times {\mathrm{12041}}^1$

素因数の和:12150

約数の個数: 24

約数和(自身を含む): 47903076

約数和(自身を除く): 26012538

約数列:

[1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818, 12041, 24082, 36123, 72246, 108369, 216738, 1216141, 2432282, 3648423, 7296846, 10945269, 21890538]

約数ペア:

[(1, 21890538), (2, 10945269), (3, 7296846), (6, 3648423), (9, 2432282), (18, 1216141), (101, 216738), (202, 108369), (303, 72246), (606, 36123), (909, 24082), (1818, 12041)]