8721189

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{1607}}^1$

素因数の和:1686

約数の個数: 20

約数和(自身を含む): 13230624

約数和(自身を除く): 4509435

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1607, 1809, 4821, 5427, 14463, 43389, 107669, 130167, 323007, 969021, 2907063, 8721189]

約数ペア:

[(1, 8721189), (3, 2907063), (9, 969021), (27, 323007), (67, 130167), (81, 107669), (201, 43389), (603, 14463), (1607, 5427), (1809, 4821)]