20125399

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1291}}^1$

素因数の和:1446

約数の個数: 16

約数和(自身を含む): 24558336

約数和(自身を除く): 4432937

約数列:

[1, 7, 17, 119, 131, 917, 1291, 2227, 9037, 15589, 21947, 153629, 169121, 1183847, 2875057, 20125399]

約数ペア:

[(1, 20125399), (7, 2875057), (17, 1183847), (119, 169121), (131, 153629), (917, 21947), (1291, 15589), (2227, 9037)]