81564329

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{5323}}^1$

素因数の和:5540

約数の個数: 16

約数和(自身を含む): 102220800

約数和(自身を除く): 20656471

約数列:

[1, 7, 11, 77, 199, 1393, 2189, 5323, 15323, 37261, 58553, 409871, 1059277, 7414939, 11652047, 81564329]

約数ペア:

[(1, 81564329), (7, 11652047), (11, 7414939), (77, 1059277), (199, 409871), (1393, 58553), (2189, 37261), (5323, 15323)]