18805749

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 26021952

約数和(自身を除く): 7216203

約数列:

[1, 3, 43, 73, 129, 219, 1997, 3139, 5991, 9417, 85871, 145781, 257613, 437343, 6268583, 18805749]

約数ペア:

[(1, 18805749), (3, 6268583), (43, 437343), (73, 257613), (129, 145781), (219, 85871), (1997, 9417), (3139, 5991)]