20786348

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 40643736

約数和(自身を除く): 19857388

約数列:

[1, 2, 4, 11, 22, 44, 67, 121, 134, 242, 268, 484, 641, 737, 1282, 1474, 2564, 2948, 7051, 8107, 14102, 16214, 28204, 32428, 42947, 77561, 85894, 155122, 171788, 310244, 472417, 944834, 1889668, 5196587, 10393174, 20786348]

約数ペア:

[(1, 20786348), (2, 10393174), (4, 5196587), (11, 1889668), (22, 944834), (44, 472417), (67, 310244), (121, 171788), (134, 155122), (242, 85894), (268, 77561), (484, 42947), (641, 32428), (737, 28204), (1282, 16214), (1474, 14102), (2564, 8107), (2948, 7051)]