21473868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137653}}^1$

素因数の和:137673

約数の個数: 24

約数和(自身を含む): 53960368

約数和(自身を除く): 32486500

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137653, 275306, 412959, 550612, 825918, 1651836, 1789489, 3578978, 5368467, 7157956, 10736934, 21473868]

約数ペア:

[(1, 21473868), (2, 10736934), (3, 7157956), (4, 5368467), (6, 3578978), (12, 1789489), (13, 1651836), (26, 825918), (39, 550612), (52, 412959), (78, 275306), (156, 137653)]