20529621

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1423}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 34062080

約数和(自身を除く): 13532459

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1423, 1603, 2061, 4269, 4809, 9961, 12807, 14427, 29883, 89649, 325867, 977601, 2281069, 2932803, 6843207, 20529621]

約数ペア:

[(1, 20529621), (3, 6843207), (7, 2932803), (9, 2281069), (21, 977601), (63, 325867), (229, 89649), (687, 29883), (1423, 14427), (1603, 12807), (2061, 9961), (4269, 4809)]