31028121

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 47399040

約数和(自身を除く): 16370919

約数列:

[1, 3, 9, 19, 57, 171, 421, 431, 1263, 1293, 3789, 3879, 7999, 8189, 23997, 24567, 71991, 73701, 181451, 544353, 1633059, 3447569, 10342707, 31028121]

約数ペア:

[(1, 31028121), (3, 10342707), (9, 3447569), (19, 1633059), (57, 544353), (171, 181451), (421, 73701), (431, 71991), (1263, 24567), (1293, 23997), (3789, 8189), (3879, 7999)]