21148808

素因数分解:

$2^3\times {\mathrm{479}}^1\times {\mathrm{5519}}^1$

素因数の和:6004

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 18595192

約数列:

[1, 2, 4, 8, 479, 958, 1916, 3832, 5519, 11038, 22076, 44152, 2643601, 5287202, 10574404, 21148808]

約数ペア:

[(1, 21148808), (2, 10574404), (4, 5287202), (8, 2643601), (479, 44152), (958, 22076), (1916, 11038), (3832, 5519)]