1993407

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 2903040

約数和(自身を除く): 909633

約数列:

[1, 3, 13, 39, 79, 237, 647, 1027, 1941, 3081, 8411, 25233, 51113, 153339, 664469, 1993407]

約数ペア:

[(1, 1993407), (3, 664469), (13, 153339), (39, 51113), (79, 25233), (237, 8411), (647, 3081), (1027, 1941)]