19514620

素因数分解:

$2^2\times 5^1\times {\mathrm{975731}}^1$

素因数の和:975740

約数の個数: 12

約数和(自身を含む): 40980744

約数和(自身を除く): 21466124

約数列:

[1, 2, 4, 5, 10, 20, 975731, 1951462, 3902924, 4878655, 9757310, 19514620]

約数ペア:

[(1, 19514620), (2, 9757310), (4, 4878655), (5, 3902924), (10, 1951462), (20, 975731)]