19716455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2579}}^1$

素因数の和:2734

約数の個数: 16

約数和(自身を含む): 26006400

約数和(自身を除く): 6289945

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2579, 7645, 12895, 28369, 141845, 358481, 1792405, 3943291, 19716455]

約数ペア:

[(1, 19716455), (5, 3943291), (11, 1792405), (55, 358481), (139, 141845), (695, 28369), (1529, 12895), (2579, 7645)]