28419381

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{39971}}^1$

素因数の和:40056

約数の個数: 12

約数和(自身を含む): 41570880

約数和(自身を除く): 13151499

約数列:

[1, 3, 9, 79, 237, 711, 39971, 119913, 359739, 3157709, 9473127, 28419381]

約数ペア:

[(1, 28419381), (3, 9473127), (9, 3157709), (79, 359739), (237, 119913), (711, 39971)]