39988221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{146477}}^1$

素因数の和:146500

約数の個数: 16

約数和(自身を含む): 65622144

約数和(自身を除く): 25633923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 146477, 439431, 1025339, 1904201, 3076017, 5712603, 13329407, 39988221]

約数ペア:

[(1, 39988221), (3, 13329407), (7, 5712603), (13, 3076017), (21, 1904201), (39, 1025339), (91, 439431), (273, 146477)]