81858387

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 122633280

約数和(自身を除く): 40774893

約数列:

[1, 3, 13, 29, 39, 87, 157, 377, 461, 471, 1131, 1383, 2041, 4553, 5993, 6123, 13369, 13659, 17979, 40107, 59189, 72377, 173797, 177567, 217131, 521391, 940901, 2098933, 2822703, 6296799, 27286129, 81858387]

約数ペア:

[(1, 81858387), (3, 27286129), (13, 6296799), (29, 2822703), (39, 2098933), (87, 940901), (157, 521391), (377, 217131), (461, 177567), (471, 173797), (1131, 72377), (1383, 59189), (2041, 40107), (4553, 17979), (5993, 13659), (6123, 13369)]