18640886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{2113}}^1$

素因数の和:2527

約数の個数: 16

約数和(自身を含む): 30593808

約数和(自身を除く): 11952922

約数列:

[1, 2, 11, 22, 401, 802, 2113, 4226, 4411, 8822, 23243, 46486, 847313, 1694626, 9320443, 18640886]

約数ペア:

[(1, 18640886), (2, 9320443), (11, 1694626), (22, 847313), (401, 46486), (802, 23243), (2113, 8822), (4226, 4411)]