21755084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{953}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 41136480

約数和(自身を除く): 19381396

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 953, 1756, 1906, 3812, 5707, 11414, 12389, 22828, 24778, 49556, 418367, 836734, 1673468, 5438771, 10877542, 21755084]

約数ペア:

[(1, 21755084), (2, 10877542), (4, 5438771), (13, 1673468), (26, 836734), (52, 418367), (439, 49556), (878, 24778), (953, 22828), (1756, 12389), (1906, 11414), (3812, 5707)]