21486933

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1783}}^1$

素因数の和:1905

約数の個数: 24

約数和(自身を含む): 33767552

約数和(自身を除く): 12280619

約数列:

[1, 3, 9, 13, 39, 103, 117, 309, 927, 1339, 1783, 4017, 5349, 12051, 16047, 23179, 69537, 183649, 208611, 550947, 1652841, 2387437, 7162311, 21486933]

約数ペア:

[(1, 21486933), (3, 7162311), (9, 2387437), (13, 1652841), (39, 550947), (103, 208611), (117, 183649), (309, 69537), (927, 23179), (1339, 16047), (1783, 12051), (4017, 5349)]