21471208

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{541}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 45414180

約数和(自身を除く): 23942972

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 121, 164, 242, 328, 451, 484, 541, 902, 968, 1082, 1804, 2164, 3608, 4328, 4961, 5951, 9922, 11902, 19844, 22181, 23804, 39688, 44362, 47608, 65461, 88724, 130922, 177448, 243991, 261844, 487982, 523688, 975964, 1951928, 2683901, 5367802, 10735604, 21471208]

約数ペア:

[(1, 21471208), (2, 10735604), (4, 5367802), (8, 2683901), (11, 1951928), (22, 975964), (41, 523688), (44, 487982), (82, 261844), (88, 243991), (121, 177448), (164, 130922), (242, 88724), (328, 65461), (451, 47608), (484, 44362), (541, 39688), (902, 23804), (968, 22181), (1082, 19844), (1804, 11902), (2164, 9922), (3608, 5951), (4328, 4961)]