81373887

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{3701}}^1$

素因数の和:4063

約数の個数: 24

約数和(自身を含む): 134752800

約数和(自身を除く): 53378913

約数列:

[1, 3, 7, 9, 21, 63, 349, 1047, 2443, 3141, 3701, 7329, 11103, 21987, 25907, 33309, 77721, 233163, 1291649, 3874947, 9041543, 11624841, 27124629, 81373887]

約数ペア:

[(1, 81373887), (3, 27124629), (7, 11624841), (9, 9041543), (21, 3874947), (63, 1291649), (349, 233163), (1047, 77721), (2443, 33309), (3141, 25907), (3701, 21987), (7329, 11103)]