19787331

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{809}}^1$

素因数の和:1106

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7584189

約数列:

[1, 3, 31, 93, 263, 789, 809, 2427, 8153, 24459, 25079, 75237, 212767, 638301, 6595777, 19787331]

約数ペア:

[(1, 19787331), (3, 6595777), (31, 638301), (93, 212767), (263, 75237), (789, 25079), (809, 24459), (2427, 8153)]