257027641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 309172332

約数和(自身を除く): 52144691

約数列:

[1, 13, 17, 37, 43, 221, 289, 481, 559, 629, 731, 1591, 1849, 3757, 8177, 9503, 10693, 12427, 20683, 24037, 27047, 31433, 68413, 139009, 161551, 351611, 408629, 459799, 534361, 889369, 1163021, 5977387, 6946693, 15119273, 19771357, 257027641]

約数ペア:

[(1, 257027641), (13, 19771357), (17, 15119273), (37, 6946693), (43, 5977387), (221, 1163021), (289, 889369), (481, 534361), (559, 459799), (629, 408629), (731, 351611), (1591, 161551), (1849, 139009), (3757, 68413), (8177, 31433), (9503, 27047), (10693, 24037), (12427, 20683)]