20581496

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{1171}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 41840400

約数和(自身を除く): 21258904

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1171, 1352, 2197, 2342, 4394, 4684, 8788, 9368, 15223, 17576, 30446, 60892, 121784, 197899, 395798, 791596, 1583192, 2572687, 5145374, 10290748, 20581496]

約数ペア:

[(1, 20581496), (2, 10290748), (4, 5145374), (8, 2572687), (13, 1583192), (26, 791596), (52, 395798), (104, 197899), (169, 121784), (338, 60892), (676, 30446), (1171, 17576), (1352, 15223), (2197, 9368), (2342, 8788), (4394, 4684)]