19895564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7219}}^1$

素因数の和:7289

約数の個数: 24

約数和(自身を含む): 38208240

約数和(自身を除く): 18312676

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7219, 14438, 28876, 93847, 187694, 375388, 382607, 765214, 1530428, 4973891, 9947782, 19895564]

約数ペア:

[(1, 19895564), (2, 9947782), (4, 4973891), (13, 1530428), (26, 765214), (52, 382607), (53, 375388), (106, 187694), (212, 93847), (689, 28876), (1378, 14438), (2756, 7219)]