31142657

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 41658624

約数和(自身を除く): 10515967

約数列:

[1, 7, 13, 17, 41, 91, 119, 221, 287, 491, 533, 697, 1547, 3437, 3731, 4879, 6383, 8347, 9061, 20131, 44681, 58429, 63427, 108511, 140917, 261703, 342227, 759577, 1831921, 2395589, 4448951, 31142657]

約数ペア:

[(1, 31142657), (7, 4448951), (13, 2395589), (17, 1831921), (41, 759577), (91, 342227), (119, 261703), (221, 140917), (287, 108511), (491, 63427), (533, 58429), (697, 44681), (1547, 20131), (3437, 9061), (3731, 8347), (4879, 6383)]