21348717

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1097}}^1$

素因数の和:1612

約数の個数: 16

約数和(自身を含む): 30744000

約数和(自身を除く): 9395283

約数列:

[1, 3, 13, 39, 499, 1097, 1497, 3291, 6487, 14261, 19461, 42783, 547403, 1642209, 7116239, 21348717]

約数ペア:

[(1, 21348717), (3, 7116239), (13, 1642209), (39, 547403), (499, 42783), (1097, 19461), (1497, 14261), (3291, 6487)]