20770857

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{2131}}^1$

素因数の和:2178

約数の個数: 24

約数和(自身を含む): 32491680

約数和(自身を除く): 11720823

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 2131, 3249, 6393, 9747, 19179, 40489, 57537, 121467, 364401, 769291, 1093203, 2307873, 6923619, 20770857]

約数ペア:

[(1, 20770857), (3, 6923619), (9, 2307873), (19, 1093203), (27, 769291), (57, 364401), (171, 121467), (361, 57537), (513, 40489), (1083, 19179), (2131, 9747), (3249, 6393)]