21226667

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 28089600

約数和(自身を除く): 6862933

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1319, 1463, 2299, 9233, 14509, 16093, 25061, 101563, 159599, 175427, 275671, 1117193, 1929697, 3032381, 21226667]

約数ペア:

[(1, 21226667), (7, 3032381), (11, 1929697), (19, 1117193), (77, 275671), (121, 175427), (133, 159599), (209, 101563), (847, 25061), (1319, 16093), (1463, 14509), (2299, 9233)]