20123986

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{1901}}^1$

素因数の和:2049

約数の個数: 16

約数和(自身を含む): 31040640

約数和(自身を除く): 10916654

約数列:

[1, 2, 67, 79, 134, 158, 1901, 3802, 5293, 10586, 127367, 150179, 254734, 300358, 10061993, 20123986]

約数ペア:

[(1, 20123986), (2, 10061993), (67, 300358), (79, 254734), (134, 150179), (158, 127367), (1901, 10586), (3802, 5293)]