21952016

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31907}}^1$

素因数の和:31958

約数の個数: 20

約数和(自身を含む): 43522512

約数和(自身を除く): 21570496

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31907, 63814, 127628, 255256, 510512, 1372001, 2744002, 5488004, 10976008, 21952016]

約数ペア:

[(1, 21952016), (2, 10976008), (4, 5488004), (8, 2744002), (16, 1372001), (43, 510512), (86, 255256), (172, 127628), (344, 63814), (688, 31907)]