21396518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 16826842

約数列:

[1, 2, 11, 13, 22, 26, 79, 143, 158, 286, 869, 947, 1027, 1738, 1894, 2054, 10417, 11297, 12311, 20834, 22594, 24622, 74813, 135421, 149626, 270842, 822943, 972569, 1645886, 1945138, 10698259, 21396518]

約数ペア:

[(1, 21396518), (2, 10698259), (11, 1945138), (13, 1645886), (22, 972569), (26, 822943), (79, 270842), (143, 149626), (158, 135421), (286, 74813), (869, 24622), (947, 22594), (1027, 20834), (1738, 12311), (1894, 11297), (2054, 10417)]