665673453

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{28657}}^1$

素因数の和:28781

約数の個数: 24

約数和(自身を含む): 1005895800

約数和(自身を除く): 340222347

約数列:

[1, 3, 9, 29, 87, 89, 261, 267, 801, 2581, 7743, 23229, 28657, 85971, 257913, 831053, 2493159, 2550473, 7479477, 7651419, 22954257, 73963717, 221891151, 665673453]

約数ペア:

[(1, 665673453), (3, 221891151), (9, 73963717), (29, 22954257), (87, 7651419), (89, 7479477), (261, 2550473), (267, 2493159), (801, 831053), (2581, 257913), (7743, 85971), (23229, 28657)]