220952641

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 281917440

約数和(自身を除く): 60964799

約数列:

[1, 7, 13, 37, 91, 137, 259, 479, 481, 959, 1781, 3353, 3367, 5069, 6227, 12467, 17723, 35483, 43589, 65623, 65897, 124061, 230399, 459361, 461279, 853099, 1612793, 2428051, 5971693, 16996357, 31564663, 220952641]

約数ペア:

[(1, 220952641), (7, 31564663), (13, 16996357), (37, 5971693), (91, 2428051), (137, 1612793), (259, 853099), (479, 461279), (481, 459361), (959, 230399), (1781, 124061), (3353, 65897), (3367, 65623), (5069, 43589), (6227, 35483), (12467, 17723)]