21118214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{1559}}^1$

素因数の和:2095

約数の個数: 16

約数和(自身を含む): 34201440

約数和(自身を除く): 13083226

約数列:

[1, 2, 13, 26, 521, 1042, 1559, 3118, 6773, 13546, 20267, 40534, 812239, 1624478, 10559107, 21118214]

約数ペア:

[(1, 21118214), (2, 10559107), (13, 1624478), (26, 812239), (521, 40534), (1042, 20267), (1559, 13546), (3118, 6773)]