18542005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2749}}^1$

素因数の和:2844

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 5217995

約数列:

[1, 5, 19, 71, 95, 355, 1349, 2749, 6745, 13745, 52231, 195179, 261155, 975895, 3708401, 18542005]

約数ペア:

[(1, 18542005), (5, 3708401), (19, 975895), (71, 261155), (95, 195179), (355, 52231), (1349, 13745), (2749, 6745)]