20172591

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 11968209

約数列:

[1, 3, 9, 17, 27, 51, 71, 153, 213, 459, 619, 639, 1207, 1857, 1917, 3621, 5571, 10523, 10863, 16713, 31569, 32589, 43949, 94707, 131847, 284121, 395541, 747133, 1186623, 2241399, 6724197, 20172591]

約数ペア:

[(1, 20172591), (3, 6724197), (9, 2241399), (17, 1186623), (27, 747133), (51, 395541), (71, 284121), (153, 131847), (213, 94707), (459, 43949), (619, 32589), (639, 31569), (1207, 16713), (1857, 10863), (1917, 10523), (3621, 5571)]