19722155

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{541}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 24819264

約数和(自身を除く): 5097109

約数列:

[1, 5, 23, 115, 317, 541, 1585, 2705, 7291, 12443, 36455, 62215, 171497, 857485, 3944431, 19722155]

約数ペア:

[(1, 19722155), (5, 3944431), (23, 857485), (115, 171497), (317, 62215), (541, 36455), (1585, 12443), (2705, 7291)]