21069367

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 24667776

約数和(自身を除く): 3598409

約数列:

[1, 11, 31, 41, 121, 137, 341, 451, 1271, 1507, 3751, 4247, 4961, 5617, 13981, 16577, 46717, 61787, 153791, 174127, 513887, 679657, 1915397, 21069367]

約数ペア:

[(1, 21069367), (11, 1915397), (31, 679657), (41, 513887), (121, 174127), (137, 153791), (341, 61787), (451, 46717), (1271, 16577), (1507, 13981), (3751, 5617), (4247, 4961)]