64565019

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{11897}}^1$

素因数の和:11976

約数の個数: 20

約数和(自身を含む): 97896744

約数和(自身を除く): 33331725

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 11897, 35691, 107073, 321219, 797099, 963657, 2391297, 7173891, 21521673, 64565019]

約数ペア:

[(1, 64565019), (3, 21521673), (9, 7173891), (27, 2391297), (67, 963657), (81, 797099), (201, 321219), (603, 107073), (1809, 35691), (5427, 11897)]