20017963

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3671}}^1$

素因数の和:3738

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4657877

約数列:

[1, 7, 19, 41, 133, 287, 779, 3671, 5453, 25697, 69749, 150511, 488243, 1053577, 2859709, 20017963]

約数ペア:

[(1, 20017963), (7, 2859709), (19, 1053577), (41, 488243), (133, 150511), (287, 69749), (779, 25697), (3671, 5453)]