13220985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{373}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 22619520

約数和(自身を除く): 9398535

約数列:

[1, 3, 5, 15, 17, 51, 85, 139, 255, 373, 417, 695, 1119, 1865, 2085, 2363, 5595, 6341, 7089, 11815, 19023, 31705, 35445, 51847, 95115, 155541, 259235, 777705, 881399, 2644197, 4406995, 13220985]

約数ペア:

[(1, 13220985), (3, 4406995), (5, 2644197), (15, 881399), (17, 777705), (51, 259235), (85, 155541), (139, 95115), (255, 51847), (373, 35445), (417, 31705), (695, 19023), (1119, 11815), (1865, 7089), (2085, 6341), (2363, 5595)]