81605313

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:495

約数の個数: 40

約数和(自身を含む): 127254248

約数和(自身を除く): 45648935

約数列:

[1, 3, 9, 27, 37, 73, 81, 111, 219, 333, 373, 657, 999, 1119, 1971, 2701, 2997, 3357, 5913, 8103, 10071, 13801, 24309, 27229, 30213, 41403, 72927, 81687, 124209, 218781, 245061, 372627, 735183, 1007473, 1117881, 2205549, 3022419, 9067257, 27201771, 81605313]

約数ペア:

[(1, 81605313), (3, 27201771), (9, 9067257), (27, 3022419), (37, 2205549), (73, 1117881), (81, 1007473), (111, 735183), (219, 372627), (333, 245061), (373, 218781), (657, 124209), (999, 81687), (1119, 72927), (1971, 41403), (2701, 30213), (2997, 27229), (3357, 24309), (5913, 13801), (8103, 10071)]