20750984

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 40095000

約数和(自身を除く): 19344016

約数列:

[1, 2, 4, 8, 53, 106, 109, 212, 218, 424, 436, 449, 872, 898, 1796, 3592, 5777, 11554, 23108, 23797, 46216, 47594, 48941, 95188, 97882, 190376, 195764, 391528, 2593873, 5187746, 10375492, 20750984]

約数ペア:

[(1, 20750984), (2, 10375492), (4, 5187746), (8, 2593873), (53, 391528), (106, 195764), (109, 190376), (212, 97882), (218, 95188), (424, 48941), (436, 47594), (449, 46216), (872, 23797), (898, 23108), (1796, 11554), (3592, 5777)]