1998397443

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{220793}}^1$

素因数の和:221234

約数の個数: 16

約数和(自身を含む): 3052256256

約数和(自身を除く): 1053858813

約数列:

[1, 3, 7, 21, 431, 1293, 3017, 9051, 220793, 662379, 1545551, 4636653, 95161783, 285485349, 666132481, 1998397443]

約数ペア:

[(1, 1998397443), (3, 666132481), (7, 285485349), (21, 95161783), (431, 4636653), (1293, 1545551), (3017, 662379), (9051, 220793)]