27720217

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3191}}^1$

素因数の和:3288

約数の個数: 16

約数和(自身を含む): 34013952

約数和(自身を除く): 6293735

約数列:

[1, 7, 17, 73, 119, 511, 1241, 3191, 8687, 22337, 54247, 232943, 379729, 1630601, 3960031, 27720217]

約数ペア:

[(1, 27720217), (7, 3960031), (17, 1630601), (73, 379729), (119, 232943), (511, 54247), (1241, 22337), (3191, 8687)]