7881321

素因数分解:

$3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1427}}^1$

素因数の和:1700

約数の個数: 16

約数和(自身を含む): 12063744

約数和(自身を除く): 4182423

約数列:

[1, 3, 7, 21, 263, 789, 1427, 1841, 4281, 5523, 9989, 29967, 375301, 1125903, 2627107, 7881321]

約数ペア:

[(1, 7881321), (3, 2627107), (7, 1125903), (21, 375301), (263, 29967), (789, 9989), (1427, 5523), (1841, 4281)]