205653721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{72901}}^1$

素因数の和:72952

約数の個数: 16

約数和(自身を含む): 261280768

約数和(自身を除く): 55627047

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 72901, 510307, 947713, 2259931, 6633991, 15819517, 29379103, 205653721]

約数ペア:

[(1, 205653721), (7, 29379103), (13, 15819517), (31, 6633991), (91, 2259931), (217, 947713), (403, 510307), (2821, 72901)]