21376949

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 25025280

約数和(自身を除く): 3648331

約数列:

[1, 11, 31, 41, 121, 139, 341, 451, 1271, 1529, 3751, 4309, 4961, 5699, 13981, 16819, 47399, 62689, 153791, 176669, 521389, 689579, 1943359, 21376949]

約数ペア:

[(1, 21376949), (11, 1943359), (31, 689579), (41, 521389), (121, 176669), (139, 153791), (341, 62689), (451, 47399), (1271, 16819), (1529, 13981), (3751, 5699), (4309, 4961)]