18449949879

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{23417}}^1$

素因数の和:23637

約数の個数: 40

約数和(自身を含む): 28154431008

約数和(自身を除く): 9704481129

約数列:

[1, 3, 9, 27, 71, 81, 137, 213, 411, 639, 1233, 1917, 3699, 5751, 9727, 11097, 23417, 29181, 70251, 87543, 210753, 262629, 632259, 787887, 1662607, 1896777, 3208129, 4987821, 9624387, 14963463, 28873161, 44890389, 86619483, 134671167, 227777159, 259858449, 683331477, 2049994431, 6149983293, 18449949879]

約数ペア:

[(1, 18449949879), (3, 6149983293), (9, 2049994431), (27, 683331477), (71, 259858449), (81, 227777159), (137, 134671167), (213, 86619483), (411, 44890389), (639, 28873161), (1233, 14963463), (1917, 9624387), (3699, 4987821), (5751, 3208129), (9727, 1896777), (11097, 1662607), (23417, 787887), (29181, 632259), (70251, 262629), (87543, 210753)]