21302534

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 48

約数和(自身を含む): 38208240

約数和(自身を除く): 16905706

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 113, 121, 209, 226, 242, 418, 451, 779, 902, 1243, 1558, 2147, 2299, 2486, 4294, 4598, 4633, 4961, 8569, 9266, 9922, 13673, 17138, 23617, 27346, 47234, 50963, 88027, 94259, 101926, 176054, 188518, 259787, 519574, 560593, 968297, 1121186, 1936594, 10651267, 21302534]

約数ペア:

[(1, 21302534), (2, 10651267), (11, 1936594), (19, 1121186), (22, 968297), (38, 560593), (41, 519574), (82, 259787), (113, 188518), (121, 176054), (209, 101926), (226, 94259), (242, 88027), (418, 50963), (451, 47234), (779, 27346), (902, 23617), (1243, 17138), (1558, 13673), (2147, 9922), (2299, 9266), (2486, 8569), (4294, 4961), (4598, 4633)]