18857995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1301}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 24498432

約数和(自身を除く): 5640437

約数列:

[1, 5, 13, 65, 223, 1115, 1301, 2899, 6505, 14495, 16913, 84565, 290123, 1450615, 3771599, 18857995]

約数ペア:

[(1, 18857995), (5, 3771599), (13, 1450615), (65, 290123), (223, 84565), (1115, 16913), (1301, 14495), (2899, 6505)]