13440879

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 20139392

約数和(自身を除く): 6698513

約数列:

[1, 3, 9, 37, 111, 181, 223, 333, 543, 669, 1629, 2007, 6697, 8251, 20091, 24753, 40363, 60273, 74259, 121089, 363267, 1493431, 4480293, 13440879]

約数ペア:

[(1, 13440879), (3, 4480293), (9, 1493431), (37, 363267), (111, 121089), (181, 74259), (223, 60273), (333, 40363), (543, 24753), (669, 20091), (1629, 8251), (2007, 6697)]