18951895

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 23283360

約数和(自身を除く): 4331465

約数列:

[1, 5, 73, 137, 365, 379, 685, 1895, 10001, 27667, 50005, 51923, 138335, 259615, 3790379, 18951895]

約数ペア:

[(1, 18951895), (5, 3790379), (73, 259615), (137, 138335), (365, 51923), (379, 50005), (685, 27667), (1895, 10001)]