81891514

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{6361}}^1$

素因数の和:6561

約数の個数: 16

約数和(自身を含む): 126654696

約数和(自身を除く): 44763182

約数列:

[1, 2, 41, 82, 157, 314, 6361, 6437, 12722, 12874, 260801, 521602, 998677, 1997354, 40945757, 81891514]

約数ペア:

[(1, 81891514), (2, 40945757), (41, 1997354), (82, 998677), (157, 521602), (314, 260801), (6361, 12874), (6437, 12722)]