21151852

素因数分解:

$2^2\times {\mathrm{1321}}^1\times {\mathrm{4003}}^1$

素因数の和:5328

約数の個数: 12

約数和(自身を含む): 37053016

約数和(自身を除く): 15901164

約数列:

[1, 2, 4, 1321, 2642, 4003, 5284, 8006, 16012, 5287963, 10575926, 21151852]

約数ペア:

[(1, 21151852), (2, 10575926), (4, 5287963), (1321, 16012), (2642, 8006), (4003, 5284)]