19116811

素因数分解:

$7^2\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 18

約数和(自身を含む): 22875012

約数和(自身を除く): 3758201

約数列:

[1, 7, 43, 49, 211, 301, 1477, 1849, 2107, 9073, 10339, 12943, 63511, 90601, 390139, 444577, 2730973, 19116811]

約数ペア:

[(1, 19116811), (7, 2730973), (43, 444577), (49, 390139), (211, 90601), (301, 63511), (1477, 12943), (1849, 10339), (2107, 9073)]