20736621

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 32123520

約数和(自身を除く): 11386899

約数列:

[1, 3, 9, 27, 43, 53, 129, 159, 337, 387, 477, 1011, 1161, 1431, 2279, 3033, 6837, 9099, 14491, 17861, 20511, 43473, 53583, 61533, 130419, 160749, 391257, 482247, 768023, 2304069, 6912207, 20736621]

約数ペア:

[(1, 20736621), (3, 6912207), (9, 2304069), (27, 768023), (43, 482247), (53, 391257), (129, 160749), (159, 130419), (337, 61533), (387, 53583), (477, 43473), (1011, 20511), (1161, 17861), (1431, 14491), (2279, 9099), (3033, 6837)]