19744665616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{747451}}^1$

素因数の和:747599

約数の個数: 40

約数和(自身を含む): 41522453504

約数和(自身を除く): 21777787888

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 1016, 1651, 2032, 3302, 6604, 13208, 26416, 747451, 1494902, 2989804, 5979608, 9716863, 11959216, 19433726, 38867452, 77734904, 94926277, 155469808, 189852554, 379705108, 759410216, 1234041601, 1518820432, 2468083202, 4936166404, 9872332808, 19744665616]

約数ペア:

[(1, 19744665616), (2, 9872332808), (4, 4936166404), (8, 2468083202), (13, 1518820432), (16, 1234041601), (26, 759410216), (52, 379705108), (104, 189852554), (127, 155469808), (208, 94926277), (254, 77734904), (508, 38867452), (1016, 19433726), (1651, 11959216), (2032, 9716863), (3302, 5979608), (6604, 2989804), (13208, 1494902), (26416, 747451)]