21590404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2711}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 41461056

約数和(自身を除く): 19870652

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2711, 3982, 5422, 7964, 10844, 29821, 59642, 119284, 490691, 981382, 1962764, 5397601, 10795202, 21590404]

約数ペア:

[(1, 21590404), (2, 10795202), (4, 5397601), (11, 1962764), (22, 981382), (44, 490691), (181, 119284), (362, 59642), (724, 29821), (1991, 10844), (2711, 7964), (3982, 5422)]