21395568

素因数分解:

$2^4\times 3^1\times {\mathrm{445741}}^1$

素因数の和:445752

約数の個数: 20

約数和(自身を含む): 55272008

約数和(自身を除く): 33876440

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445741, 891482, 1337223, 1782964, 2674446, 3565928, 5348892, 7131856, 10697784, 21395568]

約数ペア:

[(1, 21395568), (2, 10697784), (3, 7131856), (4, 5348892), (6, 3565928), (8, 2674446), (12, 1782964), (16, 1337223), (24, 891482), (48, 445741)]