21889623

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3463}}^1$

素因数の和:3523

約数の個数: 24

約数和(自身を含む): 34750848

約数和(自身を除く): 12861225

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3463, 6321, 10389, 24241, 72723, 148909, 169687, 446727, 509061, 1042363, 3127089, 7296541, 21889623]

約数ペア:

[(1, 21889623), (3, 7296541), (7, 3127089), (21, 1042363), (43, 509061), (49, 446727), (129, 169687), (147, 148909), (301, 72723), (903, 24241), (2107, 10389), (3463, 6321)]