2491489

素因数分解:

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

素因数の和:181

約数の個数: 32

約数和(自身を含む): 3548160

約数和(自身を除く): 1056671

約数列:

[1, 7, 11, 13, 19, 77, 91, 131, 133, 143, 209, 247, 917, 1001, 1441, 1463, 1703, 1729, 2489, 2717, 10087, 11921, 17423, 18733, 19019, 27379, 32357, 131131, 191653, 226499, 355927, 2491489]

約数ペア:

[(1, 2491489), (7, 355927), (11, 226499), (13, 191653), (19, 131131), (77, 32357), (91, 27379), (131, 19019), (133, 18733), (143, 17423), (209, 11921), (247, 10087), (917, 2717), (1001, 2489), (1441, 1729), (1463, 1703)]