218986174

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{947}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 375134976

約数和(自身を除く): 156148802

約数列:

[1, 2, 11, 22, 23, 46, 253, 457, 506, 914, 947, 1894, 5027, 10054, 10417, 10511, 20834, 21022, 21781, 43562, 115621, 231242, 239591, 432779, 479182, 865558, 4760569, 9521138, 9953917, 19907834, 109493087, 218986174]

約数ペア:

[(1, 218986174), (2, 109493087), (11, 19907834), (22, 9953917), (23, 9521138), (46, 4760569), (253, 865558), (457, 479182), (506, 432779), (914, 239591), (947, 231242), (1894, 115621), (5027, 43562), (10054, 21781), (10417, 21022), (10511, 20834)]