256919039

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 292840992

約数和(自身を除く): 35921953

約数列:

[1, 13, 23, 157, 169, 299, 421, 2041, 3611, 3887, 5473, 9683, 26533, 46943, 66097, 71149, 125879, 610259, 859261, 1520231, 1636427, 11170393, 19763003, 256919039]

約数ペア:

[(1, 256919039), (13, 19763003), (23, 11170393), (157, 1636427), (169, 1520231), (299, 859261), (421, 610259), (2041, 125879), (3611, 71149), (3887, 66097), (5473, 46943), (9683, 26533)]