20124839

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2551}}^1$

素因数の和:2595

約数の個数: 16

約数和(自身を含む): 24499200

約数和(自身を除く): 4374361

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2551, 7889, 17857, 58673, 124999, 410711, 874993, 2874977, 20124839]

約数ペア:

[(1, 20124839), (7, 2874977), (23, 874993), (49, 410711), (161, 124999), (343, 58673), (1127, 17857), (2551, 7889)]