28319721

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 38431680

約数和(自身を除く): 10111959

約数列:

[1, 3, 113, 139, 339, 417, 601, 1803, 15707, 47121, 67913, 83539, 203739, 250617, 9439907, 28319721]

約数ペア:

[(1, 28319721), (3, 9439907), (113, 250617), (139, 203739), (339, 83539), (417, 67913), (601, 47121), (1803, 15707)]