20774504

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 40249440

約数和(自身を除く): 19474936

約数列:

[1, 2, 4, 8, 43, 86, 131, 172, 262, 344, 461, 524, 922, 1048, 1844, 3688, 5633, 11266, 19823, 22532, 39646, 45064, 60391, 79292, 120782, 158584, 241564, 483128, 2596813, 5193626, 10387252, 20774504]

約数ペア:

[(1, 20774504), (2, 10387252), (4, 5193626), (8, 2596813), (43, 483128), (86, 241564), (131, 158584), (172, 120782), (262, 79292), (344, 60391), (461, 45064), (524, 39646), (922, 22532), (1048, 19823), (1844, 11266), (3688, 5633)]