20490953

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{929}}^1$

素因数の和:1096

約数の個数: 16

約数和(自身を含む): 24641280

約数和(自身を除く): 4150327

約数列:

[1, 7, 23, 137, 161, 929, 959, 3151, 6503, 21367, 22057, 127273, 149569, 890911, 2927279, 20490953]

約数ペア:

[(1, 20490953), (7, 2927279), (23, 890911), (137, 149569), (161, 127273), (929, 22057), (959, 21367), (3151, 6503)]