621395

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 16

約数和(自身を含む): 814080

約数和(自身を除く): 192685

約数列:

[1, 5, 19, 31, 95, 155, 211, 589, 1055, 2945, 4009, 6541, 20045, 32705, 124279, 621395]

約数ペア:

[(1, 621395), (5, 124279), (19, 32705), (31, 20045), (95, 6541), (155, 4009), (211, 2945), (589, 1055)]