17987728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{102203}}^1$

素因数の和:102222

約数の個数: 20

約数和(自身を含む): 38019888

約数和(自身を除く): 20032160

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 102203, 204406, 408812, 817624, 1124233, 1635248, 2248466, 4496932, 8993864, 17987728]

約数ペア:

[(1, 17987728), (2, 8993864), (4, 4496932), (8, 2248466), (11, 1635248), (16, 1124233), (22, 817624), (44, 408812), (88, 204406), (176, 102203)]