20397544

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{7703}}^1$

素因数の和:8040

約数の個数: 16

約数和(自身を含む): 38365920

約数和(自身を除く): 17968376

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 7703, 15406, 30812, 61624, 2549693, 5099386, 10198772, 20397544]

約数ペア:

[(1, 20397544), (2, 10198772), (4, 5099386), (8, 2549693), (331, 61624), (662, 30812), (1324, 15406), (2648, 7703)]