159860981

素因数分解:

$7^4\times {\mathrm{139}}^1\times {\mathrm{479}}^1$

素因数の和:646

約数の個数: 20

約数和(自身を含む): 188227200

約数和(自身を除く): 28366219

約数列:

[1, 7, 49, 139, 343, 479, 973, 2401, 3353, 6811, 23471, 47677, 66581, 164297, 333739, 466067, 1150079, 3262469, 22837283, 159860981]

約数ペア:

[(1, 159860981), (7, 22837283), (49, 3262469), (139, 1150079), (343, 466067), (479, 333739), (973, 164297), (2401, 66581), (3353, 47677), (6811, 23471)]