21317244

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136649}}^1$

素因数の和:136669

約数の個数: 24

約数和(自身を含む): 53566800

約数和(自身を除く): 32249556

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136649, 273298, 409947, 546596, 819894, 1639788, 1776437, 3552874, 5329311, 7105748, 10658622, 21317244]

約数ペア:

[(1, 21317244), (2, 10658622), (3, 7105748), (4, 5329311), (6, 3552874), (12, 1776437), (13, 1639788), (26, 819894), (39, 546596), (52, 409947), (78, 273298), (156, 136649)]