219100251

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 306332928

約数和(自身を除く): 87232677

約数列:

[1, 3, 53, 67, 131, 157, 159, 201, 393, 471, 3551, 6943, 8321, 8777, 10519, 10653, 20567, 20829, 24963, 26331, 31557, 61701, 465181, 557507, 1090051, 1377989, 1395543, 1672521, 3270153, 4133967, 73033417, 219100251]

約数ペア:

[(1, 219100251), (3, 73033417), (53, 4133967), (67, 3270153), (131, 1672521), (157, 1395543), (159, 1377989), (201, 1090051), (393, 557507), (471, 465181), (3551, 61701), (6943, 31557), (8321, 26331), (8777, 24963), (10519, 20829), (10653, 20567)]