16660809

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 28514304

約数和(自身を除く): 11853495

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 243, 253, 271, 297, 621, 759, 813, 891, 1863, 2277, 2439, 2673, 2981, 5589, 6233, 6831, 7317, 8943, 18699, 20493, 21951, 26829, 56097, 61479, 65853, 68563, 80487, 168291, 205689, 241461, 504873, 617067, 724383, 1514619, 1851201, 5553603, 16660809]

約数ペア:

[(1, 16660809), (3, 5553603), (9, 1851201), (11, 1514619), (23, 724383), (27, 617067), (33, 504873), (69, 241461), (81, 205689), (99, 168291), (207, 80487), (243, 68563), (253, 65853), (271, 61479), (297, 56097), (621, 26829), (759, 21951), (813, 20493), (891, 18699), (1863, 8943), (2277, 7317), (2439, 6831), (2673, 6233), (2981, 5589)]