20349549

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 34804224

約数和(自身を除く): 14454675

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 243, 253, 297, 331, 621, 759, 891, 993, 1863, 2277, 2673, 2979, 3641, 5589, 6831, 7613, 8937, 10923, 20493, 22839, 26811, 32769, 61479, 68517, 80433, 83743, 98307, 205551, 251229, 294921, 616653, 753687, 884763, 1849959, 2261061, 6783183, 20349549]

約数ペア:

[(1, 20349549), (3, 6783183), (9, 2261061), (11, 1849959), (23, 884763), (27, 753687), (33, 616653), (69, 294921), (81, 251229), (99, 205551), (207, 98307), (243, 83743), (253, 80433), (297, 68517), (331, 61479), (621, 32769), (759, 26811), (891, 22839), (993, 20493), (1863, 10923), (2277, 8937), (2673, 7613), (2979, 6831), (3641, 5589)]