81317967

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 117504000

約数和(自身を除く): 36186033

約数列:

[1, 3, 19, 57, 67, 107, 199, 201, 321, 597, 1273, 2033, 3781, 3819, 6099, 7169, 11343, 13333, 21293, 21507, 39999, 63879, 136211, 253327, 404567, 408633, 759981, 1213701, 1426631, 4279893, 27105989, 81317967]

約数ペア:

[(1, 81317967), (3, 27105989), (19, 4279893), (57, 1426631), (67, 1213701), (107, 759981), (199, 408633), (201, 404567), (321, 253327), (597, 136211), (1273, 63879), (2033, 39999), (3781, 21507), (3819, 21293), (6099, 13333), (7169, 11343)]