221891151

素因数分解:

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

素因数の和:28778

約数の個数: 16

約数和(自身を含む): 309506400

約数和(自身を除く): 87615249

約数列:

[1, 3, 29, 87, 89, 267, 2581, 7743, 28657, 85971, 831053, 2493159, 2550473, 7651419, 73963717, 221891151]

約数ペア:

[(1, 221891151), (3, 73963717), (29, 7651419), (87, 2550473), (89, 2493159), (267, 831053), (2581, 85971), (7743, 28657)]