21119679

素因数分解:

$3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1193}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 35017632

約数和(自身を除く): 13897953

約数列:

[1, 3, 7, 9, 21, 63, 281, 843, 1193, 1967, 2529, 3579, 5901, 8351, 10737, 17703, 25053, 75159, 335233, 1005699, 2346631, 3017097, 7039893, 21119679]

約数ペア:

[(1, 21119679), (3, 7039893), (7, 3017097), (9, 2346631), (21, 1005699), (63, 335233), (281, 75159), (843, 25053), (1193, 17703), (1967, 10737), (2529, 8351), (3579, 5901)]