20804950726

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{840061}}^1$

素因数の和:840160

約数の個数: 32

約数和(自身を含む): 37500367680

約数和(自身を除く): 16695416954

約数列:

[1, 2, 7, 14, 29, 58, 61, 122, 203, 406, 427, 854, 1769, 3538, 12383, 24766, 840061, 1680122, 5880427, 11760854, 24361769, 48723538, 51243721, 102487442, 170532383, 341064766, 358706047, 717412094, 1486067909, 2972135818, 10402475363, 20804950726]

約数ペア:

[(1, 20804950726), (2, 10402475363), (7, 2972135818), (14, 1486067909), (29, 717412094), (58, 358706047), (61, 341064766), (122, 170532383), (203, 102487442), (406, 51243721), (427, 48723538), (854, 24361769), (1769, 11760854), (3538, 5880427), (12383, 1680122), (24766, 840061)]