20811770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42473}}^1$

素因数の和:42494

約数の個数: 24

約数和(自身を含む): 43578324

約数和(自身を除く): 22766554

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42473, 84946, 212365, 297311, 424730, 594622, 1486555, 2081177, 2973110, 4162354, 10405885, 20811770]

約数ペア:

[(1, 20811770), (2, 10405885), (5, 4162354), (7, 2973110), (10, 2081177), (14, 1486555), (35, 594622), (49, 424730), (70, 297311), (98, 212365), (245, 84946), (490, 42473)]