21354069

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17489}}^1$

素因数の和:17540

約数の個数: 16

約数和(自身を含む): 31901760

約数和(自身を除く): 10547691

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17489, 52467, 192379, 577137, 647093, 1941279, 7118023, 21354069]

約数ペア:

[(1, 21354069), (3, 7118023), (11, 1941279), (33, 647093), (37, 577137), (111, 192379), (407, 52467), (1221, 17489)]