21182427

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3329}}^1$

素因数の和:3443

約数の個数: 24

約数和(自身を含む): 35324640

約数和(自身を除く): 14142213

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3329, 6363, 9987, 23303, 29961, 69909, 209727, 336229, 1008687, 2353603, 3026061, 7060809, 21182427]

約数ペア:

[(1, 21182427), (3, 7060809), (7, 3026061), (9, 2353603), (21, 1008687), (63, 336229), (101, 209727), (303, 69909), (707, 29961), (909, 23303), (2121, 9987), (3329, 6363)]