19705907

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^3$

素因数の和:100

約数の個数: 24

約数和(自身を含む): 23848560

約数和(自身を除く): 4142653

約数列:

[1, 13, 17, 19, 169, 221, 247, 323, 361, 2873, 3211, 4199, 4693, 6137, 6859, 54587, 61009, 79781, 89167, 116603, 1037153, 1159171, 1515839, 19705907]

約数ペア:

[(1, 19705907), (13, 1515839), (17, 1159171), (19, 1037153), (169, 116603), (221, 89167), (247, 79781), (323, 61009), (361, 54587), (2873, 6859), (3211, 6137), (4199, 4693)]