19907344

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2179}}^1$

素因数の和:2758

約数の個数: 20

約数和(自身を含む): 38655760

約数和(自身を除く): 18748416

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2179, 2284, 4358, 4568, 8716, 9136, 17432, 34864, 1244209, 2488418, 4976836, 9953672, 19907344]

約数ペア:

[(1, 19907344), (2, 9953672), (4, 4976836), (8, 2488418), (16, 1244209), (571, 34864), (1142, 17432), (2179, 9136), (2284, 8716), (4358, 4568)]