13905815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1901}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 21911040

約数和(自身を除く): 8005225

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 1901, 7315, 9505, 13307, 20911, 36119, 66535, 104555, 146377, 180595, 252833, 397309, 731885, 1264165, 1986545, 2781163, 13905815]

約数ペア:

[(1, 13905815), (5, 2781163), (7, 1986545), (11, 1264165), (19, 731885), (35, 397309), (55, 252833), (77, 180595), (95, 146377), (133, 104555), (209, 66535), (385, 36119), (665, 20911), (1045, 13307), (1463, 9505), (1901, 7315)]