16815175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1723

約数の個数: 24

約数和(自身を含む): 23192960

約数和(自身を除く): 6377785

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 1669, 2015, 8345, 10075, 21697, 41725, 51739, 108485, 258695, 542425, 672607, 1293475, 3363035, 16815175]

約数ペア:

[(1, 16815175), (5, 3363035), (13, 1293475), (25, 672607), (31, 542425), (65, 258695), (155, 108485), (325, 51739), (403, 41725), (775, 21697), (1669, 10075), (2015, 8345)]