21820188

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2293}}^1$

素因数の和:2374

約数の個数: 48

約数和(自身を含む): 55753376

約数和(自身を除く): 33933188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 183, 244, 366, 732, 793, 1586, 2293, 2379, 3172, 4586, 4758, 6879, 9172, 9516, 13758, 27516, 29809, 59618, 89427, 119236, 139873, 178854, 279746, 357708, 419619, 559492, 839238, 1678476, 1818349, 3636698, 5455047, 7273396, 10910094, 21820188]

約数ペア:

[(1, 21820188), (2, 10910094), (3, 7273396), (4, 5455047), (6, 3636698), (12, 1818349), (13, 1678476), (26, 839238), (39, 559492), (52, 419619), (61, 357708), (78, 279746), (122, 178854), (156, 139873), (183, 119236), (244, 89427), (366, 59618), (732, 29809), (793, 27516), (1586, 13758), (2293, 9516), (2379, 9172), (3172, 6879), (4586, 4758)]