19313890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21701}}^1$

素因数の和:21797

約数の個数: 16

約数和(自身を含む): 35157240

約数和(自身を除く): 15843350

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21701, 43402, 108505, 217010, 1931389, 3862778, 9656945, 19313890]

約数ペア:

[(1, 19313890), (2, 9656945), (5, 3862778), (10, 1931389), (89, 217010), (178, 108505), (445, 43402), (890, 21701)]