20318529

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87959}}^1$

素因数の和:87980

約数の個数: 16

約数和(自身を含む): 33776640

約数和(自身を除く): 13458111

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87959, 263877, 615713, 967549, 1847139, 2902647, 6772843, 20318529]

約数ペア:

[(1, 20318529), (3, 6772843), (7, 2902647), (11, 1847139), (21, 967549), (33, 615713), (77, 263877), (231, 87959)]