19198501

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 22464000

約数和(自身を除く): 3265499

約数列:

[1, 7, 79, 149, 233, 553, 1043, 1631, 11771, 18407, 34717, 82397, 128849, 243019, 2742643, 19198501]

約数ペア:

[(1, 19198501), (7, 2742643), (79, 243019), (149, 128849), (233, 82397), (553, 34717), (1043, 18407), (1631, 11771)]