20888278

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{5471}}^1$

素因数の和:5579

約数の個数: 16

約数和(自身を含む): 33094656

約数和(自身を除く): 12206378

約数列:

[1, 2, 23, 46, 83, 166, 1909, 3818, 5471, 10942, 125833, 251666, 454093, 908186, 10444139, 20888278]

約数ペア:

[(1, 20888278), (2, 10444139), (23, 908186), (46, 454093), (83, 251666), (166, 125833), (1909, 10942), (3818, 5471)]