21857370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{728579}}^1$

素因数の和:728589

約数の個数: 16

約数和(自身を含む): 52457760

約数和(自身を除く): 30600390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 728579, 1457158, 2185737, 3642895, 4371474, 7285790, 10928685, 21857370]

約数ペア:

[(1, 21857370), (2, 10928685), (3, 7285790), (5, 4371474), (6, 3642895), (10, 2185737), (15, 1457158), (30, 728579)]