21337839

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1567}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11684241

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 1567, 4539, 4701, 13617, 14103, 26639, 79917, 139463, 239751, 418389, 1255167, 2370871, 7112613, 21337839]

約数ペア:

[(1, 21337839), (3, 7112613), (9, 2370871), (17, 1255167), (51, 418389), (89, 239751), (153, 139463), (267, 79917), (801, 26639), (1513, 14103), (1567, 13617), (4539, 4701)]