21951069

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4817}}^1$

素因数の和:4865

約数の個数: 24

約数和(自身を含む): 35152128

約数和(自身を除く): 13201059

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 4817, 14451, 33719, 101157, 149327, 236033, 447981, 708099, 1045289, 3135867, 7317023, 21951069]

約数ペア:

[(1, 21951069), (3, 7317023), (7, 3135867), (21, 1045289), (31, 708099), (49, 447981), (93, 236033), (147, 149327), (217, 101157), (651, 33719), (1519, 14451), (4557, 4817)]