19805378

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1621}}^1$

素因数の和:1813

約数の個数: 16

約数和(自身を含む): 30655800

約数和(自身を除く): 10850422

約数列:

[1, 2, 41, 82, 149, 298, 1621, 3242, 6109, 12218, 66461, 132922, 241529, 483058, 9902689, 19805378]

約数ペア:

[(1, 19805378), (2, 9902689), (41, 483058), (82, 241529), (149, 132922), (298, 66461), (1621, 12218), (3242, 6109)]