20347767

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 34029072

約数和(自身を除く): 13681305

約数列:

[1, 3, 9, 11, 27, 33, 41, 81, 99, 123, 297, 369, 451, 557, 891, 1107, 1353, 1671, 3321, 4059, 5013, 6127, 12177, 15039, 18381, 22837, 36531, 45117, 55143, 68511, 165429, 205533, 251207, 496287, 616599, 753621, 1849797, 2260863, 6782589, 20347767]

約数ペア:

[(1, 20347767), (3, 6782589), (9, 2260863), (11, 1849797), (27, 753621), (33, 616599), (41, 496287), (81, 251207), (99, 205533), (123, 165429), (297, 68511), (369, 55143), (451, 45117), (557, 36531), (891, 22837), (1107, 18381), (1353, 15039), (1671, 12177), (3321, 6127), (4059, 5013)]