20871005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1871}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 5546659

約数列:

[1, 5, 23, 97, 115, 485, 1871, 2231, 9355, 11155, 43033, 181487, 215165, 907435, 4174201, 20871005]

約数ペア:

[(1, 20871005), (5, 4174201), (23, 907435), (97, 215165), (115, 181487), (485, 43033), (1871, 11155), (2231, 9355)]