19778744

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 38586240

約数和(自身を除く): 18807496

約数列:

[1, 2, 4, 8, 31, 62, 124, 173, 248, 346, 461, 692, 922, 1384, 1844, 3688, 5363, 10726, 14291, 21452, 28582, 42904, 57164, 79753, 114328, 159506, 319012, 638024, 2472343, 4944686, 9889372, 19778744]

約数ペア:

[(1, 19778744), (2, 9889372), (4, 4944686), (8, 2472343), (31, 638024), (62, 319012), (124, 159506), (173, 114328), (248, 79753), (346, 57164), (461, 42904), (692, 28582), (922, 21452), (1384, 14291), (1844, 10726), (3688, 5363)]