21040827

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 29052672

約数和(自身を除く): 8011845

約数列:

[1, 3, 37, 111, 131, 393, 1447, 4341, 4847, 14541, 53539, 160617, 189557, 568671, 7013609, 21040827]

約数ペア:

[(1, 21040827), (3, 7013609), (37, 568671), (111, 189557), (131, 160617), (393, 53539), (1447, 14541), (4341, 4847)]