19997420354

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{2663}}^1\times {\mathrm{70843}}^1$

素因数の和:73561

約数の個数: 16

約数和(自身を含む): 30574003392

約数和(自身を除く): 10576583038

約数列:

[1, 2, 53, 106, 2663, 5326, 70843, 141139, 141686, 282278, 3754679, 7509358, 188654909, 377309818, 9998710177, 19997420354]

約数ペア:

[(1, 19997420354), (2, 9998710177), (53, 377309818), (106, 188654909), (2663, 7509358), (5326, 3754679), (70843, 282278), (141139, 141686)]