19916009

素因数分解:

${\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1364

約数の個数: 12

約数和(自身を含む): 21524976

約数和(自身を除く): 1608967

約数列:

[1, 19, 43, 361, 817, 1283, 15523, 24377, 55169, 463163, 1048211, 19916009]

約数ペア:

[(1, 19916009), (19, 1048211), (43, 463163), (361, 55169), (817, 24377), (1283, 15523)]