20435690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16889}}^1$

素因数の和:16918

約数の個数: 24

約数和(自身を含む): 40434660

約数和(自身を除く): 19998970

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16889, 33778, 84445, 168890, 185779, 371558, 928895, 1857790, 2043569, 4087138, 10217845, 20435690]

約数ペア:

[(1, 20435690), (2, 10217845), (5, 4087138), (10, 2043569), (11, 1857790), (22, 928895), (55, 371558), (110, 185779), (121, 168890), (242, 84445), (605, 33778), (1210, 16889)]