81327508

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{21157}}^1$

素因数の和:21223

約数の個数: 18

約数和(自身を含む): 147069258

約数和(自身を除く): 65741750

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 21157, 42314, 84628, 655867, 1311734, 2623468, 20331877, 40663754, 81327508]

約数ペア:

[(1, 81327508), (2, 40663754), (4, 20331877), (31, 2623468), (62, 1311734), (124, 655867), (961, 84628), (1922, 42314), (3844, 21157)]