20302317

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2423}}^1$

素因数の和:2462

約数の個数: 36

約数和(自身を含む): 35923680

約数和(自身を除く): 15621363

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2423, 2793, 7269, 8379, 16961, 21807, 46037, 50883, 118727, 138111, 152649, 322259, 356181, 414333, 966777, 1068543, 2255813, 2900331, 6767439, 20302317]

約数ペア:

[(1, 20302317), (3, 6767439), (7, 2900331), (9, 2255813), (19, 1068543), (21, 966777), (49, 414333), (57, 356181), (63, 322259), (133, 152649), (147, 138111), (171, 118727), (399, 50883), (441, 46037), (931, 21807), (1197, 16961), (2423, 8379), (2793, 7269)]