21672910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{757}}^1$

素因数の和:1180

約数の個数: 32

約数和(自身を含む): 44752320

約数和(自身を除く): 23079410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 757, 818, 1514, 2045, 2863, 3785, 4090, 5299, 5726, 7570, 10598, 14315, 26495, 28630, 52990, 309613, 619226, 1548065, 2167291, 3096130, 4334582, 10836455, 21672910]

約数ペア:

[(1, 21672910), (2, 10836455), (5, 4334582), (7, 3096130), (10, 2167291), (14, 1548065), (35, 619226), (70, 309613), (409, 52990), (757, 28630), (818, 26495), (1514, 14315), (2045, 10598), (2863, 7570), (3785, 5726), (4090, 5299)]