19663774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5441}}^1$

素因数の和:5595

約数の個数: 16

約数和(自身を含む): 31998960

約数和(自身を除く): 12335186

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5441, 10882, 70733, 141466, 756299, 1512598, 9831887, 19663774]

約数ペア:

[(1, 19663774), (2, 9831887), (13, 1512598), (26, 756299), (139, 141466), (278, 70733), (1807, 10882), (3614, 5441)]