18779734

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1571}}^1$

素因数の和:1755

約数の個数: 16

約数和(自身を含む): 29050560

約数和(自身を除く): 10270826

約数列:

[1, 2, 43, 86, 139, 278, 1571, 3142, 5977, 11954, 67553, 135106, 218369, 436738, 9389867, 18779734]

約数ペア:

[(1, 18779734), (2, 9389867), (43, 436738), (86, 218369), (139, 135106), (278, 67553), (1571, 11954), (3142, 5977)]