27986679

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10331}}^1$

素因数の和:10387

約数の個数: 24

約数和(自身を含む): 47279232

約数和(自身を除く): 19292553

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 10331, 30993, 72317, 92979, 216951, 444233, 650853, 1332699, 3109631, 3998097, 9328893, 27986679]

約数ペア:

[(1, 27986679), (3, 9328893), (7, 3998097), (9, 3109631), (21, 1332699), (43, 650853), (63, 444233), (129, 216951), (301, 92979), (387, 72317), (903, 30993), (2709, 10331)]