204920431389

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{35632139}}^1$

素因数の和:35632222

約数の個数: 20

約数和(自身を含む): 310427203680

約数和(自身を除く): 105506772291

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 35632139, 106896417, 320689251, 962067753, 2529881869, 2886203259, 7589645607, 22768936821, 68306810463, 204920431389]

約数ペア:

[(1, 204920431389), (3, 68306810463), (9, 22768936821), (27, 7589645607), (71, 2886203259), (81, 2529881869), (213, 962067753), (639, 320689251), (1917, 106896417), (5751, 35632139)]