2778657

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 4257792

約数和(自身を除く): 1479135

約数列:

[1, 3, 7, 21, 307, 431, 921, 1293, 2149, 3017, 6447, 9051, 132317, 396951, 926219, 2778657]

約数ペア:

[(1, 2778657), (3, 926219), (7, 396951), (21, 132317), (307, 9051), (431, 6447), (921, 3017), (1293, 2149)]