21463623

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 34394976

約数和(自身を除く): 12931353

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 207, 281, 369, 621, 843, 943, 1107, 1863, 2529, 2829, 3321, 6463, 7587, 8487, 11521, 19389, 22761, 25461, 34563, 58167, 76383, 103689, 174501, 264983, 311067, 523503, 794949, 933201, 2384847, 7154541, 21463623]

約数ペア:

[(1, 21463623), (3, 7154541), (9, 2384847), (23, 933201), (27, 794949), (41, 523503), (69, 311067), (81, 264983), (123, 174501), (207, 103689), (281, 76383), (369, 58167), (621, 34563), (843, 25461), (943, 22761), (1107, 19389), (1863, 11521), (2529, 8487), (2829, 7587), (3321, 6463)]