21325707

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60757}}^1$

素因数の和:60779

約数の個数: 16

約数和(自身を含む): 34024480

約数和(自身を除く): 12698773

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60757, 182271, 546813, 789841, 1640439, 2369523, 7108569, 21325707]

約数ペア:

[(1, 21325707), (3, 7108569), (9, 2369523), (13, 1640439), (27, 789841), (39, 546813), (117, 182271), (351, 60757)]