21887973

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2579}}^1$

素因数の和:2649

約数の個数: 24

約数和(自身を含む): 33808320

約数和(自身を除く): 11920347

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2579, 2829, 7737, 8487, 23211, 59317, 105739, 177951, 317217, 533853, 951651, 2431997, 7295991, 21887973]

約数ペア:

[(1, 21887973), (3, 7295991), (9, 2431997), (23, 951651), (41, 533853), (69, 317217), (123, 177951), (207, 105739), (369, 59317), (943, 23211), (2579, 8487), (2829, 7737)]