81274545

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164191}}^1$

素因数の和:164213

約数の個数: 24

約数和(自身を含む): 153683712

約数和(自身を除く): 72409167

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 164191, 492573, 820955, 1477719, 1806101, 2462865, 5418303, 7388595, 9030505, 16254909, 27091515, 81274545]

約数ペア:

[(1, 81274545), (3, 27091515), (5, 16254909), (9, 9030505), (11, 7388595), (15, 5418303), (33, 2462865), (45, 1806101), (55, 1477719), (99, 820955), (165, 492573), (495, 164191)]