19894886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11447}}^1$

素因数の和:11539

約数の個数: 16

約数和(自身を含む): 32970240

約数和(自身を除く): 13075354

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 11447, 22894, 125917, 251834, 904313, 1808626, 9947443, 19894886]

約数ペア:

[(1, 19894886), (2, 9947443), (11, 1808626), (22, 904313), (79, 251834), (158, 125917), (869, 22894), (1738, 11447)]