16809813

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 25740000

約数和(自身を除く): 8930187

約数列:

[1, 3, 9, 19, 57, 171, 197, 499, 591, 1497, 1773, 3743, 4491, 9481, 11229, 28443, 33687, 85329, 98303, 294909, 884727, 1867757, 5603271, 16809813]

約数ペア:

[(1, 16809813), (3, 5603271), (9, 1867757), (19, 884727), (57, 294909), (171, 98303), (197, 85329), (499, 33687), (591, 28443), (1497, 11229), (1773, 9481), (3743, 4491)]