87339903

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31271}}^1$

素因数の和:31307

約数の個数: 24

約数和(自身を含む): 142600320

約数和(自身を除く): 55260417

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 31271, 93813, 218897, 594149, 656691, 1532279, 1782447, 4159043, 4596837, 12477129, 29113301, 87339903]

約数ペア:

[(1, 87339903), (3, 29113301), (7, 12477129), (19, 4596837), (21, 4159043), (49, 1782447), (57, 1532279), (133, 656691), (147, 594149), (399, 218897), (931, 93813), (2793, 31271)]