20392405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{3671}}^1$

素因数の和:3788

約数の個数: 16

約数和(自身を含む): 26967168

約数和(自身を除く): 6574763

約数列:

[1, 5, 11, 55, 101, 505, 1111, 3671, 5555, 18355, 40381, 201905, 370771, 1853855, 4078481, 20392405]

約数ペア:

[(1, 20392405), (5, 4078481), (11, 1853855), (55, 370771), (101, 201905), (505, 40381), (1111, 18355), (3671, 5555)]