260665921

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{971}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 279936000

約数和(自身を除く): 19270079

約数列:

[1, 19, 71, 199, 971, 1349, 3781, 14129, 18449, 68941, 193229, 268451, 1309879, 3671351, 13719259, 260665921]

約数ペア:

[(1, 260665921), (19, 13719259), (71, 3671351), (199, 1309879), (971, 268451), (1349, 193229), (3781, 68941), (14129, 18449)]