18689211

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{1289}}^1$

素因数の和:1480

約数の個数: 20

約数和(自身を含む): 28096200

約数和(自身を除く): 9406989

約数列:

[1, 3, 9, 27, 81, 179, 537, 1289, 1611, 3867, 4833, 11601, 14499, 34803, 104409, 230731, 692193, 2076579, 6229737, 18689211]

約数ペア:

[(1, 18689211), (3, 6229737), (9, 2076579), (27, 692193), (81, 230731), (179, 104409), (537, 34803), (1289, 14499), (1611, 11601), (3867, 4833)]