19489988

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{11411}}^1$

素因数の和:11483

約数の個数: 24

約数和(自身を含む): 39622464

約数和(自身を除く): 20132476

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 11411, 22822, 45644, 79877, 159754, 319508, 696071, 1392142, 2784284, 4872497, 9744994, 19489988]

約数ペア:

[(1, 19489988), (2, 9744994), (4, 4872497), (7, 2784284), (14, 1392142), (28, 696071), (61, 319508), (122, 159754), (244, 79877), (427, 45644), (854, 22822), (1708, 11411)]