20645331

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2281}}^1$

素因数の和:2722

約数の個数: 16

約数和(自身を含む): 31546368

約数和(自身を除く): 10901037

約数列:

[1, 3, 7, 21, 431, 1293, 2281, 3017, 6843, 9051, 15967, 47901, 983111, 2949333, 6881777, 20645331]

約数ペア:

[(1, 20645331), (3, 6881777), (7, 2949333), (21, 983111), (431, 47901), (1293, 15967), (2281, 9051), (3017, 6843)]