20942405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{757}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 27506304

約数和(自身を除く): 6563899

約数列:

[1, 5, 11, 55, 503, 757, 2515, 3785, 5533, 8327, 27665, 41635, 380771, 1903855, 4188481, 20942405]

約数ペア:

[(1, 20942405), (5, 4188481), (11, 1903855), (55, 380771), (503, 41635), (757, 27665), (2515, 8327), (3785, 5533)]