18964673

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 26562816

約数和(自身を除く): 7598143

約数列:

[1, 7, 13, 17, 23, 41, 91, 119, 161, 169, 221, 287, 299, 391, 533, 697, 943, 1183, 1547, 2093, 2737, 2873, 3731, 3887, 4879, 5083, 6601, 6929, 9061, 12259, 16031, 20111, 27209, 35581, 48503, 63427, 66079, 85813, 112217, 117793, 159367, 208403, 462553, 824551, 1115569, 1458821, 2709239, 18964673]

約数ペア:

[(1, 18964673), (7, 2709239), (13, 1458821), (17, 1115569), (23, 824551), (41, 462553), (91, 208403), (119, 159367), (161, 117793), (169, 112217), (221, 85813), (287, 66079), (299, 63427), (391, 48503), (533, 35581), (697, 27209), (943, 20111), (1183, 16031), (1547, 12259), (2093, 9061), (2737, 6929), (2873, 6601), (3731, 5083), (3887, 4879)]