31121321

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 41392260

約数和(自身を除く): 10270939

約数列:

[1, 7, 11, 29, 49, 77, 121, 181, 203, 319, 539, 847, 1267, 1421, 1991, 2233, 3509, 5249, 5929, 8869, 13937, 15631, 21901, 24563, 36743, 57739, 97559, 153307, 171941, 257201, 404173, 635129, 1073149, 2829211, 4445903, 31121321]

約数ペア:

[(1, 31121321), (7, 4445903), (11, 2829211), (29, 1073149), (49, 635129), (77, 404173), (121, 257201), (181, 171941), (203, 153307), (319, 97559), (539, 57739), (847, 36743), (1267, 24563), (1421, 21901), (1991, 15631), (2233, 13937), (3509, 8869), (5249, 5929)]