20959533

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2638

約数の個数: 32

約数和(自身を含む): 36326400

約数和(自身を除く): 15366867

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2579, 2709, 7737, 8127, 18053, 23211, 54159, 69633, 110897, 162477, 332691, 487431, 776279, 998073, 2328837, 2994219, 6986511, 20959533]

約数ペア:

[(1, 20959533), (3, 6986511), (7, 2994219), (9, 2328837), (21, 998073), (27, 776279), (43, 487431), (63, 332691), (129, 162477), (189, 110897), (301, 69633), (387, 54159), (903, 23211), (1161, 18053), (2579, 8127), (2709, 7737)]