19999495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6791}}^1$

素因数の和:6846

約数の個数: 16

約数和(自身を含む): 26081280

約数和(自身を除く): 6081785

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6791, 33955, 129029, 210521, 645145, 1052605, 3999899, 19999495]

約数ペア:

[(1, 19999495), (5, 3999899), (19, 1052605), (31, 645145), (95, 210521), (155, 129029), (589, 33955), (2945, 6791)]