261569217

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{23369}}^1$

素因数の和:23433

約数の個数: 32

約数和(自身を含む): 439729920

約数和(自身を除く): 178160703

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 3731, 11193, 23369, 70107, 163583, 303797, 490749, 911391, 958129, 2126579, 2874387, 6379737, 6706903, 12455677, 20120709, 37367031, 87189739, 261569217]

約数ペア:

[(1, 261569217), (3, 87189739), (7, 37367031), (13, 20120709), (21, 12455677), (39, 6706903), (41, 6379737), (91, 2874387), (123, 2126579), (273, 958129), (287, 911391), (533, 490749), (861, 303797), (1599, 163583), (3731, 70107), (11193, 23369)]