39855921

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{26731}}^1$

素因数の和:26812

約数の個数: 16

約数和(自身を含む): 61590528

約数和(自身を除く): 21734607

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 26731, 80193, 187117, 561351, 1897901, 5693703, 13285307, 39855921]

約数ペア:

[(1, 39855921), (3, 13285307), (7, 5693703), (21, 1897901), (71, 561351), (213, 187117), (497, 80193), (1491, 26731)]