19206928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{863}}^1$

素因数の和:991

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 21290480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 863, 1391, 1712, 1726, 2782, 3452, 5564, 6904, 11128, 11219, 13808, 22256, 22438, 44876, 89752, 92341, 179504, 184682, 369364, 738728, 1200433, 1477456, 2400866, 4801732, 9603464, 19206928]

約数ペア:

[(1, 19206928), (2, 9603464), (4, 4801732), (8, 2400866), (13, 1477456), (16, 1200433), (26, 738728), (52, 369364), (104, 184682), (107, 179504), (208, 92341), (214, 89752), (428, 44876), (856, 22438), (863, 22256), (1391, 13808), (1712, 11219), (1726, 11128), (2782, 6904), (3452, 5564)]