21886852

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{32377}}^1$

素因数の和:32407

約数の個数: 18

約数和(自身を含む): 41476218

約数和(自身を除く): 19589366

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 32377, 64754, 129508, 420901, 841802, 1683604, 5471713, 10943426, 21886852]

約数ペア:

[(1, 21886852), (2, 10943426), (4, 5471713), (13, 1683604), (26, 841802), (52, 420901), (169, 129508), (338, 64754), (676, 32377)]