18688605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 32417280

約数和(自身を除く): 13728675

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 239, 401, 717, 1195, 1203, 2005, 3107, 3585, 5213, 6015, 9321, 15535, 15639, 26065, 46605, 78195, 95839, 287517, 479195, 1245907, 1437585, 3737721, 6229535, 18688605]

約数ペア:

[(1, 18688605), (3, 6229535), (5, 3737721), (13, 1437585), (15, 1245907), (39, 479195), (65, 287517), (195, 95839), (239, 78195), (401, 46605), (717, 26065), (1195, 15639), (1203, 15535), (2005, 9321), (3107, 6015), (3585, 5213)]