128972907

素因数分解:

$3^2\times 7^1\times {\mathrm{1093}}^1\times {\mathrm{1873}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 213216224

約数和(自身を除く): 84243317

約数列:

[1, 3, 7, 9, 21, 63, 1093, 1873, 3279, 5619, 7651, 9837, 13111, 16857, 22953, 39333, 68859, 117999, 2047189, 6141567, 14330323, 18424701, 42990969, 128972907]

約数ペア:

[(1, 128972907), (3, 42990969), (7, 18424701), (9, 14330323), (21, 6141567), (63, 2047189), (1093, 117999), (1873, 68859), (3279, 39333), (5619, 22953), (7651, 16857), (9837, 13111)]