20666145

素因数分解:

$3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{4903}}^1$

素因数の和:5192

約数の個数: 16

約数和(自身を含む): 33190272

約数和(自身を除く): 12524127

約数列:

[1, 3, 5, 15, 281, 843, 1405, 4215, 4903, 14709, 24515, 73545, 1377743, 4133229, 6888715, 20666145]

約数ペア:

[(1, 20666145), (3, 6888715), (5, 4133229), (15, 1377743), (281, 73545), (843, 24515), (1405, 14709), (4215, 4903)]