20914701

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 28598400

約数和(自身を除く): 7683699

約数列:

[1, 3, 53, 159, 199, 597, 661, 1983, 10547, 31641, 35033, 105099, 131539, 394617, 6971567, 20914701]

約数ペア:

[(1, 20914701), (3, 6971567), (53, 394617), (159, 131539), (199, 105099), (597, 35033), (661, 31641), (1983, 10547)]