1861407

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1051

約数の個数: 16

約数和(自身を含む): 2799360

約数和(自身を除く): 937953

約数列:

[1, 3, 9, 27, 71, 213, 639, 971, 1917, 2913, 8739, 26217, 68941, 206823, 620469, 1861407]

約数ペア:

[(1, 1861407), (3, 620469), (9, 206823), (27, 68941), (71, 26217), (213, 8739), (639, 2913), (971, 1917)]