261668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 527520

約数和(自身を除く): 265852

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 313, 418, 626, 836, 1252, 3443, 5947, 6886, 11894, 13772, 23788, 65417, 130834, 261668]

約数ペア:

[(1, 261668), (2, 130834), (4, 65417), (11, 23788), (19, 13772), (22, 11894), (38, 6886), (44, 5947), (76, 3443), (209, 1252), (313, 836), (418, 626)]