21072609

素因数分解:

$3^3\times {\mathrm{757}}^1\times {\mathrm{1031}}^1$

素因数の和:1797

約数の個数: 16

約数和(自身を含む): 31290240

約数和(自身を除く): 10217631

約数列:

[1, 3, 9, 27, 757, 1031, 2271, 3093, 6813, 9279, 20439, 27837, 780467, 2341401, 7024203, 21072609]

約数ペア:

[(1, 21072609), (3, 7024203), (9, 2341401), (27, 780467), (757, 27837), (1031, 20439), (2271, 9279), (3093, 6813)]