19537281

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10487}}^1$

素因数の和:10522

約数の個数: 20

約数和(自身を含む): 30457152

約数和(自身を除く): 10919871

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10487, 31461, 94383, 241201, 283149, 723603, 849447, 2170809, 6512427, 19537281]

約数ペア:

[(1, 19537281), (3, 6512427), (9, 2170809), (23, 849447), (27, 723603), (69, 283149), (81, 241201), (207, 94383), (621, 31461), (1863, 10487)]