21701097

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 14990103

約数列:

[1, 3, 9, 11, 19, 33, 57, 83, 99, 139, 171, 209, 249, 417, 627, 747, 913, 1251, 1529, 1577, 1881, 2641, 2739, 4587, 4731, 7923, 8217, 11537, 13761, 14193, 17347, 23769, 29051, 34611, 52041, 87153, 103833, 126907, 156123, 219203, 261459, 380721, 657609, 1142163, 1972827, 2411233, 7233699, 21701097]

約数ペア:

[(1, 21701097), (3, 7233699), (9, 2411233), (11, 1972827), (19, 1142163), (33, 657609), (57, 380721), (83, 261459), (99, 219203), (139, 156123), (171, 126907), (209, 103833), (249, 87153), (417, 52041), (627, 34611), (747, 29051), (913, 23769), (1251, 17347), (1529, 14193), (1577, 13761), (1881, 11537), (2641, 8217), (2739, 7923), (4587, 4731)]