81213996

素因数分解:

$2^2\times 3^1\times {\mathrm{1997}}^1\times {\mathrm{3389}}^1$

素因数の和:5393

約数の個数: 24

約数和(自身を含む): 189650160

約数和(自身を除く): 108436164

約数列:

[1, 2, 3, 4, 6, 12, 1997, 3389, 3994, 5991, 6778, 7988, 10167, 11982, 13556, 20334, 23964, 40668, 6767833, 13535666, 20303499, 27071332, 40606998, 81213996]

約数ペア:

[(1, 81213996), (2, 40606998), (3, 27071332), (4, 20303499), (6, 13535666), (12, 6767833), (1997, 40668), (3389, 23964), (3994, 20334), (5991, 13556), (6778, 11982), (7988, 10167)]