18979955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{829}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 24103200

約数和(自身を除く): 5123245

約数列:

[1, 5, 19, 95, 241, 829, 1205, 4145, 4579, 15751, 22895, 78755, 199789, 998945, 3795991, 18979955]

約数ペア:

[(1, 18979955), (5, 3795991), (19, 998945), (95, 199789), (241, 78755), (829, 22895), (1205, 15751), (4145, 4579)]