19472089

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 26078976

約数和(自身を除く): 6606887

約数列:

[1, 7, 13, 17, 41, 91, 119, 221, 287, 307, 533, 697, 1547, 2149, 3731, 3991, 4879, 5219, 9061, 12587, 27937, 36533, 63427, 67847, 88109, 163631, 213979, 474929, 1145417, 1497853, 2781727, 19472089]

約数ペア:

[(1, 19472089), (7, 2781727), (13, 1497853), (17, 1145417), (41, 474929), (91, 213979), (119, 163631), (221, 88109), (287, 67847), (307, 63427), (533, 36533), (697, 27937), (1547, 12587), (2149, 9061), (3731, 5219), (3991, 4879)]