399487556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{451909}}^1$

素因数の和:451943

約数の個数: 24

約数和(自身を含む): 797169240

約数和(自身を除く): 397681684

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 451909, 903818, 1807636, 5874817, 7682453, 11749634, 15364906, 23499268, 30729812, 99871889, 199743778, 399487556]

約数ペア:

[(1, 399487556), (2, 199743778), (4, 99871889), (13, 30729812), (17, 23499268), (26, 15364906), (34, 11749634), (52, 7682453), (68, 5874817), (221, 1807636), (442, 903818), (884, 451909)]