21045978

素因数分解:

$2^1\times 3^2\times {\mathrm{83}}^1\times {\mathrm{14087}}^1$

素因数の和:14178

約数の個数: 24

約数和(自身を含む): 46152288

約数和(自身を除く): 25106310

約数列:

[1, 2, 3, 6, 9, 18, 83, 166, 249, 498, 747, 1494, 14087, 28174, 42261, 84522, 126783, 253566, 1169221, 2338442, 3507663, 7015326, 10522989, 21045978]

約数ペア:

[(1, 21045978), (2, 10522989), (3, 7015326), (6, 3507663), (9, 2338442), (18, 1169221), (83, 253566), (166, 126783), (249, 84522), (498, 42261), (747, 28174), (1494, 14087)]