18402355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2118

約数の個数: 16

約数和(自身を含む): 23496480

約数和(自身を除く): 5094125

約数列:

[1, 5, 19, 95, 97, 485, 1843, 1997, 9215, 9985, 37943, 189715, 193709, 968545, 3680471, 18402355]

約数ペア:

[(1, 18402355), (5, 3680471), (19, 968545), (95, 193709), (97, 189715), (485, 37943), (1843, 9985), (1997, 9215)]