20005011

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2803}}^1$

素因数の和:2883

約数の個数: 24

約数和(自身を含む): 31640336

約数和(自身を除く): 11635325

約数列:

[1, 3, 9, 13, 39, 61, 117, 183, 549, 793, 2379, 2803, 7137, 8409, 25227, 36439, 109317, 170983, 327951, 512949, 1538847, 2222779, 6668337, 20005011]

約数ペア:

[(1, 20005011), (3, 6668337), (9, 2222779), (13, 1538847), (39, 512949), (61, 327951), (117, 170983), (183, 109317), (549, 36439), (793, 25227), (2379, 8409), (2803, 7137)]