21686884

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:364

約数の個数: 36

約数和(自身を含む): 40893244

約数和(自身を除く): 19206360

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 148, 277, 529, 554, 851, 1058, 1108, 1702, 2116, 3404, 6371, 10249, 12742, 19573, 20498, 25484, 39146, 40996, 78292, 146533, 235727, 293066, 471454, 586132, 942908, 5421721, 10843442, 21686884]

約数ペア:

[(1, 21686884), (2, 10843442), (4, 5421721), (23, 942908), (37, 586132), (46, 471454), (74, 293066), (92, 235727), (148, 146533), (277, 78292), (529, 40996), (554, 39146), (851, 25484), (1058, 20498), (1108, 19573), (1702, 12742), (2116, 10249), (3404, 6371)]