28786947

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{7177}}^1$

素因数の和:7378

約数の個数: 16

約数和(自身を含む): 44101632

約数和(自身を除く): 15314685

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 7177, 21531, 50239, 150717, 1370807, 4112421, 9595649, 28786947]

約数ペア:

[(1, 28786947), (3, 9595649), (7, 4112421), (21, 1370807), (191, 150717), (573, 50239), (1337, 21531), (4011, 7177)]