20585721

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{2137}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 31300320

約数和(自身を除く): 10714599

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 507, 741, 2137, 3211, 6411, 9633, 27781, 40603, 83343, 121809, 361153, 527839, 1083459, 1583517, 6861907, 20585721]

約数ペア:

[(1, 20585721), (3, 6861907), (13, 1583517), (19, 1083459), (39, 527839), (57, 361153), (169, 121809), (247, 83343), (507, 40603), (741, 27781), (2137, 9633), (3211, 6411)]