19199887

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 22632192

約数和(自身を除く): 3432305

約数列:

[1, 7, 43, 227, 281, 301, 1589, 1967, 9761, 12083, 63787, 68327, 84581, 446509, 2742841, 19199887]

約数ペア:

[(1, 19199887), (7, 2742841), (43, 446509), (227, 84581), (281, 68327), (301, 63787), (1589, 12083), (1967, 9761)]