28550739

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9781}}^1$

素因数の和:9930

約数の個数: 16

約数和(自身を含む): 43823360

約数和(自身を除く): 15272621

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 9781, 29343, 68467, 205401, 1359559, 4078677, 9516913, 28550739]

約数ペア:

[(1, 28550739), (3, 9516913), (7, 4078677), (21, 1359559), (139, 205401), (417, 68467), (973, 29343), (2919, 9781)]