20616165

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19919}}^1$

素因数の和:19953

約数の個数: 24

約数和(自身を含む): 37290240

約数和(自身を除く): 16674075

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19919, 59757, 99595, 179271, 298785, 458137, 896355, 1374411, 2290685, 4123233, 6872055, 20616165]

約数ペア:

[(1, 20616165), (3, 6872055), (5, 4123233), (9, 2290685), (15, 1374411), (23, 896355), (45, 458137), (69, 298785), (115, 179271), (207, 99595), (345, 59757), (1035, 19919)]