20916335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4273}}^1$

素因数の和:4378

約数の個数: 16

約数和(自身を含む): 27695520

約数和(自身を除く): 6779185

約数列:

[1, 5, 11, 55, 89, 445, 979, 4273, 4895, 21365, 47003, 235015, 380297, 1901485, 4183267, 20916335]

約数ペア:

[(1, 20916335), (5, 4183267), (11, 1901485), (55, 380297), (89, 235015), (445, 47003), (979, 21365), (4273, 4895)]