19999799612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{959131}}^1$

素因数の和:959549

約数の個数: 24

約数和(自身を含む): 37785964272

約数和(自身を除く): 17786164660

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 1604, 5213, 10426, 20852, 959131, 1918262, 3836524, 12468703, 24937406, 49874812, 384611531, 769223062, 1538446124, 4999949903, 9999899806, 19999799612]

約数ペア:

[(1, 19999799612), (2, 9999899806), (4, 4999949903), (13, 1538446124), (26, 769223062), (52, 384611531), (401, 49874812), (802, 24937406), (1604, 12468703), (5213, 3836524), (10426, 1918262), (20852, 959131)]