20790874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13109}}^1$

素因数の和:13185

約数の個数: 16

約数和(自身を含む): 34138440

約数和(自身を除く): 13347566

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 13109, 26218, 170417, 340834, 799649, 1599298, 10395437, 20790874]

約数ペア:

[(1, 20790874), (2, 10395437), (13, 1599298), (26, 799649), (61, 340834), (122, 170417), (793, 26218), (1586, 13109)]