21050470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300721}}^1$

素因数の和:300735

約数の個数: 16

約数和(自身を含む): 43303968

約数和(自身を除く): 22253498

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300721, 601442, 1503605, 2105047, 3007210, 4210094, 10525235, 21050470]

約数ペア:

[(1, 21050470), (2, 10525235), (5, 4210094), (7, 3007210), (10, 2105047), (14, 1503605), (35, 601442), (70, 300721)]