21606554

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{907}}^1$

素因数の和:1229

約数の個数: 16

約数和(自身を含む): 33319968

約数和(自身を除く): 11713414

約数列:

[1, 2, 43, 86, 277, 554, 907, 1814, 11911, 23822, 39001, 78002, 251239, 502478, 10803277, 21606554]

約数ペア:

[(1, 21606554), (2, 10803277), (43, 502478), (86, 251239), (277, 78002), (554, 39001), (907, 23822), (1814, 11911)]