21571060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154079}}^1$

素因数の和:154095

約数の個数: 24

約数和(自身を含む): 51770880

約数和(自身を除く): 30199820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154079, 308158, 616316, 770395, 1078553, 1540790, 2157106, 3081580, 4314212, 5392765, 10785530, 21571060]

約数ペア:

[(1, 21571060), (2, 10785530), (4, 5392765), (5, 4314212), (7, 3081580), (10, 2157106), (14, 1540790), (20, 1078553), (28, 770395), (35, 616316), (70, 308158), (140, 154079)]