28588707

素因数分解:

$3^5\times 7^6$

素因数の和:57

約数の個数: 42

約数和(自身を含む): 49961548

約数和(自身を除く): 21372841

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 343, 441, 567, 1029, 1323, 1701, 2401, 3087, 3969, 7203, 9261, 11907, 16807, 21609, 27783, 50421, 64827, 83349, 117649, 151263, 194481, 352947, 453789, 583443, 1058841, 1361367, 3176523, 4084101, 9529569, 28588707]

約数ペア:

[(1, 28588707), (3, 9529569), (7, 4084101), (9, 3176523), (21, 1361367), (27, 1058841), (49, 583443), (63, 453789), (81, 352947), (147, 194481), (189, 151263), (243, 117649), (343, 83349), (441, 64827), (567, 50421), (1029, 27783), (1323, 21609), (1701, 16807), (2401, 11907), (3087, 9261), (3969, 7203)]