21038706

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89909}}^1$

素因数の和:89930

約数の個数: 24

約数和(自身を含む): 49090860

約数和(自身を除く): 28052154

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89909, 179818, 269727, 539454, 809181, 1168817, 1618362, 2337634, 3506451, 7012902, 10519353, 21038706]

約数ペア:

[(1, 21038706), (2, 10519353), (3, 7012902), (6, 3506451), (9, 2337634), (13, 1618362), (18, 1168817), (26, 809181), (39, 539454), (78, 269727), (117, 179818), (234, 89909)]