21619251

素因数分解:

$3^3\times {\mathrm{523}}^1\times {\mathrm{1531}}^1$

素因数の和:2063

約数の個数: 16

約数和(自身を含む): 32110720

約数和(自身を除く): 10491469

約数列:

[1, 3, 9, 27, 523, 1531, 1569, 4593, 4707, 13779, 14121, 41337, 800713, 2402139, 7206417, 21619251]

約数ペア:

[(1, 21619251), (3, 7206417), (9, 2402139), (27, 800713), (523, 41337), (1531, 14121), (1569, 13779), (4593, 4707)]