39897669

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{26759}}^1$

素因数の和:26840

約数の個数: 16

約数和(自身を含む): 61655040

約数和(自身を除く): 21757371

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 26759, 80277, 187313, 561939, 1899889, 5699667, 13299223, 39897669]

約数ペア:

[(1, 39897669), (3, 13299223), (7, 5699667), (21, 1899889), (71, 561939), (213, 187313), (497, 80277), (1491, 26759)]