21203765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9403}}^1$

素因数の和:9460

約数の個数: 16

約数和(自身を含む): 28437696

約数和(自身を除く): 7233931

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9403, 47015, 103433, 385523, 517165, 1927615, 4240753, 21203765]

約数ペア:

[(1, 21203765), (5, 4240753), (11, 1927615), (41, 517165), (55, 385523), (205, 103433), (451, 47015), (2255, 9403)]