20188581

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5557}}^1$

素因数の和:5740

約数の個数: 16

約数和(自身を含む): 30946944

約数和(自身を除く): 10758363

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5557, 16671, 38899, 116697, 961361, 2884083, 6729527, 20188581]

約数ペア:

[(1, 20188581), (3, 6729527), (7, 2884083), (21, 961361), (173, 116697), (519, 38899), (1211, 16671), (3633, 5557)]