21300970

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2633}}^1$

素因数の和:3449

約数の個数: 16

約数和(自身を含む): 38403720

約数和(自身を除く): 17102750

約数列:

[1, 2, 5, 10, 809, 1618, 2633, 4045, 5266, 8090, 13165, 26330, 2130097, 4260194, 10650485, 21300970]

約数ペア:

[(1, 21300970), (2, 10650485), (5, 4260194), (10, 2130097), (809, 26330), (1618, 13165), (2633, 8090), (4045, 5266)]