19917469

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4493}}^1$

素因数の和:4548

約数の個数: 16

約数和(自身を含む): 24159744

約数和(自身を除く): 4242275

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4493, 49423, 58409, 139283, 642499, 1532113, 1810679, 19917469]

約数ペア:

[(1, 19917469), (11, 1810679), (13, 1532113), (31, 642499), (143, 139283), (341, 58409), (403, 49423), (4433, 4493)]