20129421

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{39703}}^1$

素因数の和:39732

約数の個数: 12

約数和(自身を含む): 29063328

約数和(自身を除く): 8933907

約数列:

[1, 3, 13, 39, 169, 507, 39703, 119109, 516139, 1548417, 6709807, 20129421]

約数ペア:

[(1, 20129421), (3, 6709807), (13, 1548417), (39, 516139), (169, 119109), (507, 39703)]