21122868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135403}}^1$

素因数の和:135423

約数の個数: 24

約数和(自身を含む): 53078368

約数和(自身を除く): 31955500

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135403, 270806, 406209, 541612, 812418, 1624836, 1760239, 3520478, 5280717, 7040956, 10561434, 21122868]

約数ペア:

[(1, 21122868), (2, 10561434), (3, 7040956), (4, 5280717), (6, 3520478), (12, 1760239), (13, 1624836), (26, 812418), (39, 541612), (52, 406209), (78, 270806), (156, 135403)]