21977006

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{1999}}^1$

素因数の和:2263

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 12582994

約数列:

[1, 2, 23, 46, 239, 478, 1999, 3998, 5497, 10994, 45977, 91954, 477761, 955522, 10988503, 21977006]

約数ペア:

[(1, 21977006), (2, 10988503), (23, 955522), (46, 477761), (239, 91954), (478, 45977), (1999, 10994), (3998, 5497)]