21940730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44777}}^1$

素因数の和:44798

約数の個数: 24

約数和(自身を含む): 45942228

約数和(自身を除く): 24001498

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44777, 89554, 223885, 313439, 447770, 626878, 1567195, 2194073, 3134390, 4388146, 10970365, 21940730]

約数ペア:

[(1, 21940730), (2, 10970365), (5, 4388146), (7, 3134390), (10, 2194073), (14, 1567195), (35, 626878), (49, 447770), (70, 313439), (98, 223885), (245, 89554), (490, 44777)]