19639907

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 23577600

約数和(自身を除く): 3937693

約数列:

[1, 7, 23, 161, 199, 613, 1393, 4291, 4577, 14099, 32039, 98693, 121987, 853909, 2805701, 19639907]

約数ペア:

[(1, 19639907), (7, 2805701), (23, 853909), (161, 121987), (199, 98693), (613, 32039), (1393, 14099), (4291, 4577)]