389635939

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{220009}}^1$

素因数の和:220050

約数の個数: 16

約数和(自身を含む): 506903040

約数和(自身を除く): 117267101

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 220009, 1540063, 2420099, 5060207, 16940693, 35421449, 55662277, 389635939]

約数ペア:

[(1, 389635939), (7, 55662277), (11, 35421449), (23, 16940693), (77, 5060207), (161, 2420099), (253, 1540063), (1771, 220009)]