21079251

素因数分解:

$3^3\times {\mathrm{349}}^1\times {\mathrm{2237}}^1$

素因数の和:2595

約数の個数: 16

約数和(自身を含む): 31332000

約数和(自身を除く): 10252749

約数列:

[1, 3, 9, 27, 349, 1047, 2237, 3141, 6711, 9423, 20133, 60399, 780713, 2342139, 7026417, 21079251]

約数ペア:

[(1, 21079251), (3, 7026417), (9, 2342139), (27, 780713), (349, 60399), (1047, 20133), (2237, 9423), (3141, 6711)]