21624399

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 32452992

約数和(自身を除く): 10828593

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 639, 787, 2361, 3053, 7083, 9159, 27477, 33841, 55877, 101523, 167631, 304569, 502893, 2402711, 7208133, 21624399]

約数ペア:

[(1, 21624399), (3, 7208133), (9, 2402711), (43, 502893), (71, 304569), (129, 167631), (213, 101523), (387, 55877), (639, 33841), (787, 27477), (2361, 9159), (3053, 7083)]