19545290

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21961}}^1$

素因数の和:22057

約数の個数: 16

約数和(自身を含む): 35578440

約数和(自身を除く): 16033150

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21961, 43922, 109805, 219610, 1954529, 3909058, 9772645, 19545290]

約数ペア:

[(1, 19545290), (2, 9772645), (5, 3909058), (10, 1954529), (89, 219610), (178, 109805), (445, 43922), (890, 21961)]