21911042

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{1993}}^1$

素因数の和:2257

約数の個数: 16

約数和(自身を含む): 34456320

約数和(自身を除く): 12545278

約数列:

[1, 2, 23, 46, 239, 478, 1993, 3986, 5497, 10994, 45839, 91678, 476327, 952654, 10955521, 21911042]

約数ペア:

[(1, 21911042), (2, 10955521), (23, 952654), (46, 476327), (239, 91678), (478, 45839), (1993, 10994), (3986, 5497)]