13720287

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{13901}}^1$

素因数の和:13958

約数の個数: 16

約数和(自身を含む): 21353472

約数和(自身を除く): 7633185

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 13901, 41703, 97307, 291921, 653347, 1960041, 4573429, 13720287]

約数ペア:

[(1, 13720287), (3, 4573429), (7, 1960041), (21, 653347), (47, 291921), (141, 97307), (329, 41703), (987, 13901)]