12786501

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6691}}^1$

素因数の和:6721

約数の個数: 24

約数和(自身を含む): 21360864

約数和(自身を除く): 8574363

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 6691, 20073, 46837, 86983, 140511, 260949, 327859, 608881, 983577, 1826643, 4262167, 12786501]

約数ペア:

[(1, 12786501), (3, 4262167), (7, 1826643), (13, 983577), (21, 608881), (39, 327859), (49, 260949), (91, 140511), (147, 86983), (273, 46837), (637, 20073), (1911, 6691)]