81660271

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{55817}}^1$

素因数の和:55854

約数の個数: 16

約数和(自身を含む): 107170560

約数和(自身を除く): 25510289

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 55817, 390719, 613987, 1060523, 4297909, 7423661, 11665753, 81660271]

約数ペア:

[(1, 81660271), (7, 11665753), (11, 7423661), (19, 4297909), (77, 1060523), (133, 613987), (209, 390719), (1463, 55817)]