19972942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8329}}^1$

素因数の和:8451

約数の個数: 16

約数和(自身を含む): 32986800

約数和(自身を除く): 13013858

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8329, 16658, 91619, 183238, 907861, 1815722, 9986471, 19972942]

約数ペア:

[(1, 19972942), (2, 9986471), (11, 1815722), (22, 907861), (109, 183238), (218, 91619), (1199, 16658), (2398, 8329)]