21517370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43913}}^1$

素因数の和:43934

約数の個数: 24

約数和(自身を含む): 45055764

約数和(自身を除く): 23538394

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43913, 87826, 219565, 307391, 439130, 614782, 1536955, 2151737, 3073910, 4303474, 10758685, 21517370]

約数ペア:

[(1, 21517370), (2, 10758685), (5, 4303474), (7, 3073910), (10, 2151737), (14, 1536955), (35, 614782), (49, 439130), (70, 307391), (98, 219565), (245, 87826), (490, 43913)]