21234538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11503}}^1$

素因数の和:11589

約数の個数: 16

約数和(自身を含む): 34788096

約数和(自身を除く): 13553558

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11503, 23006, 149539, 299078, 816713, 1633426, 10617269, 21234538]

約数ペア:

[(1, 21234538), (2, 10617269), (13, 1633426), (26, 816713), (71, 299078), (142, 149539), (923, 23006), (1846, 11503)]