20574309

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13799}}^1$

素因数の和:13880

約数の個数: 16

約数和(自身を含む): 31795200

約数和(自身を除く): 11220891

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13799, 41397, 96593, 289779, 979729, 2939187, 6858103, 20574309]

約数ペア:

[(1, 20574309), (3, 6858103), (7, 2939187), (21, 979729), (71, 289779), (213, 96593), (497, 41397), (1491, 13799)]