2021621777

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{172009}}^1$

素因数の和:172112

約数の個数: 16

約数和(自身を含む): 2443918080

約数和(自身を除く): 422296303

約数列:

[1, 7, 23, 73, 161, 511, 1679, 11753, 172009, 1204063, 3956207, 12556657, 27693449, 87896599, 288803111, 2021621777]

約数ペア:

[(1, 2021621777), (7, 288803111), (23, 87896599), (73, 27693449), (161, 12556657), (511, 3956207), (1679, 1204063), (11753, 172009)]