19996761

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3833}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 27972864

約数和(自身を除く): 7976103

約数列:

[1, 3, 37, 47, 111, 141, 1739, 3833, 5217, 11499, 141821, 180151, 425463, 540453, 6665587, 19996761]

約数ペア:

[(1, 19996761), (3, 6665587), (37, 540453), (47, 425463), (111, 180151), (141, 141821), (1739, 11499), (3833, 5217)]