21243784

素因数分解:

$2^3\times {\mathrm{191}}^1\times {\mathrm{13903}}^1$

素因数の和:14100

約数の個数: 16

約数和(自身を含む): 40043520

約数和(自身を除く): 18799736

約数列:

[1, 2, 4, 8, 191, 382, 764, 1528, 13903, 27806, 55612, 111224, 2655473, 5310946, 10621892, 21243784]

約数ペア:

[(1, 21243784), (2, 10621892), (4, 5310946), (8, 2655473), (191, 111224), (382, 55612), (764, 27806), (1528, 13903)]