17440423

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 25280640

約数和(自身を除く): 7840217

約数列:

[1, 7, 11, 13, 19, 49, 77, 91, 131, 133, 143, 209, 247, 539, 637, 917, 931, 1001, 1441, 1463, 1703, 1729, 2489, 2717, 6419, 7007, 10087, 10241, 11921, 12103, 17423, 18733, 19019, 27379, 32357, 70609, 83447, 121961, 131131, 133133, 191653, 226499, 355927, 917917, 1341571, 1585493, 2491489, 17440423]

約数ペア:

[(1, 17440423), (7, 2491489), (11, 1585493), (13, 1341571), (19, 917917), (49, 355927), (77, 226499), (91, 191653), (131, 133133), (133, 131131), (143, 121961), (209, 83447), (247, 70609), (539, 32357), (637, 27379), (917, 19019), (931, 18733), (1001, 17423), (1441, 12103), (1463, 11921), (1703, 10241), (1729, 10087), (2489, 7007), (2717, 6419)]