19954263

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4261}}^1$

素因数の和:4494

約数の個数: 16

約数和(自身を含む): 30550016

約数和(自身を除く): 10595753

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4261, 4683, 12783, 29827, 89481, 950203, 2850609, 6651421, 19954263]

約数ペア:

[(1, 19954263), (3, 6651421), (7, 2850609), (21, 950203), (223, 89481), (669, 29827), (1561, 12783), (4261, 4683)]