21237039

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{7351}}^1$

素因数の和:7467

約数の個数: 16

約数和(自身を含む): 31760640

約数和(自身を除く): 10523601

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 7351, 22053, 66159, 198477, 786557, 2359671, 7079013, 21237039]

約数ペア:

[(1, 21237039), (3, 7079013), (9, 2359671), (27, 786557), (107, 198477), (321, 66159), (963, 22053), (2889, 7351)]