12730257

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{12743}}^1$

素因数の和:12789

約数の個数: 16

約数和(自身を含む): 19370880

約数和(自身を除く): 6640623

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 12743, 38229, 114687, 344061, 471491, 1414473, 4243419, 12730257]

約数ペア:

[(1, 12730257), (3, 4243419), (9, 1414473), (27, 471491), (37, 344061), (111, 114687), (333, 38229), (999, 12743)]