19869808

素因数分解:

$2^4\times 7^1\times {\mathrm{177409}}^1$

素因数の和:177424

約数の個数: 20

約数和(自身を含む): 43997680

約数和(自身を除く): 24127872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177409, 354818, 709636, 1241863, 1419272, 2483726, 2838544, 4967452, 9934904, 19869808]

約数ペア:

[(1, 19869808), (2, 9934904), (4, 4967452), (7, 2838544), (8, 2483726), (14, 1419272), (16, 1241863), (28, 709636), (56, 354818), (112, 177409)]