20512037

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{2477}}^1$

素因数の和:2517

約数の個数: 18

約数和(自身を含む): 25848018

約数和(自身を除く): 5335981

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 2477, 8281, 17339, 32201, 121373, 225407, 418613, 1577849, 2930291, 20512037]

約数ペア:

[(1, 20512037), (7, 2930291), (13, 1577849), (49, 418613), (91, 225407), (169, 121373), (637, 32201), (1183, 17339), (2477, 8281)]