21315343

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 25814160

約数和(自身を除く): 4498817

約数列:

[1, 7, 49, 59, 73, 101, 413, 511, 707, 2891, 3577, 4307, 4949, 5959, 7373, 30149, 41713, 51611, 211043, 291991, 361277, 435007, 3045049, 21315343]

約数ペア:

[(1, 21315343), (7, 3045049), (49, 435007), (59, 361277), (73, 291991), (101, 211043), (413, 51611), (511, 41713), (707, 30149), (2891, 7373), (3577, 5959), (4307, 4949)]