21427173

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{2341}}^1$

素因数の和:2466

約数の個数: 20

約数和(自身を含む): 32305548

約数和(自身を除く): 10878375

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 2341, 3051, 7023, 9153, 21069, 63207, 189621, 264533, 793599, 2380797, 7142391, 21427173]

約数ペア:

[(1, 21427173), (3, 7142391), (9, 2380797), (27, 793599), (81, 264533), (113, 189621), (339, 63207), (1017, 21069), (2341, 9153), (3051, 7023)]