21466165

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 30710232

約数和(自身を除く): 9244067

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 2137, 10045, 10685, 14959, 74795, 87617, 104713, 438085, 523565, 613319, 3066595, 4293233, 21466165]

約数ペア:

[(1, 21466165), (5, 4293233), (7, 3066595), (35, 613319), (41, 523565), (49, 438085), (205, 104713), (245, 87617), (287, 74795), (1435, 14959), (2009, 10685), (2137, 10045)]