2637621

素因数分解:

$3^2\times 7^2\times {\mathrm{5981}}^1$

素因数の和:6001

約数の個数: 18

約数和(自身を含む): 4432662

約数和(自身を除く): 1795041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 5981, 17943, 41867, 53829, 125601, 293069, 376803, 879207, 2637621]

約数ペア:

[(1, 2637621), (3, 879207), (7, 376803), (9, 293069), (21, 125601), (49, 53829), (63, 41867), (147, 17943), (441, 5981)]