81715203

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 125363520

約数和(自身を除く): 43648317

約数列:

[1, 3, 9, 27, 37, 111, 157, 333, 471, 521, 999, 1413, 1563, 4239, 4689, 5809, 14067, 17427, 19277, 52281, 57831, 81797, 156843, 173493, 245391, 520479, 736173, 2208519, 3026489, 9079467, 27238401, 81715203]

約数ペア:

[(1, 81715203), (3, 27238401), (9, 9079467), (27, 3026489), (37, 2208519), (111, 736173), (157, 520479), (333, 245391), (471, 173493), (521, 156843), (999, 81797), (1413, 57831), (1563, 52281), (4239, 19277), (4689, 17427), (5809, 14067)]