161720251

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{431}}^1\times {\mathrm{443}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 204083712

約数和(自身を除く): 42363461

約数列:

[1, 7, 11, 77, 121, 431, 443, 847, 3017, 3101, 4741, 4873, 33187, 34111, 52151, 53603, 190933, 365057, 375221, 1336531, 2100263, 14701841, 23102893, 161720251]

約数ペア:

[(1, 161720251), (7, 23102893), (11, 14701841), (77, 2100263), (121, 1336531), (431, 375221), (443, 365057), (847, 190933), (3017, 53603), (3101, 52151), (4741, 34111), (4873, 33187)]