81693807

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 120347136

約数和(自身を除く): 38653329

約数列:

[1, 3, 13, 39, 71, 163, 181, 213, 489, 543, 923, 2119, 2353, 2769, 6357, 7059, 11573, 12851, 29503, 34719, 38553, 88509, 150449, 167063, 383539, 451347, 501189, 1150617, 2094713, 6284139, 27231269, 81693807]

約数ペア:

[(1, 81693807), (3, 27231269), (13, 6284139), (39, 2094713), (71, 1150617), (163, 501189), (181, 451347), (213, 383539), (489, 167063), (543, 150449), (923, 88509), (2119, 38553), (2353, 34719), (2769, 29503), (6357, 12851), (7059, 11573)]