20541818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8263}}^1$

素因数の和:8389

約数の個数: 16

約数和(自身を含む): 33915456

約数和(自身を除く): 13373638

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8263, 16526, 90893, 181786, 933719, 1867438, 10270909, 20541818]

約数ペア:

[(1, 20541818), (2, 10270909), (11, 1867438), (22, 933719), (113, 181786), (226, 90893), (1243, 16526), (2486, 8263)]