51247215

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2731}}^1$

素因数の和:2884

約数の個数: 32

約数和(自身を含む): 91795200

約数和(自身を除く): 40547985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1251, 2085, 2731, 3753, 6255, 8193, 13655, 18765, 24579, 40965, 73737, 122895, 368685, 379609, 1138827, 1898045, 3416481, 5694135, 10249443, 17082405, 51247215]

約数ペア:

[(1, 51247215), (3, 17082405), (5, 10249443), (9, 5694135), (15, 3416481), (27, 1898045), (45, 1138827), (135, 379609), (139, 368685), (417, 122895), (695, 73737), (1251, 40965), (2085, 24579), (2731, 18765), (3753, 13655), (6255, 8193)]