21751206

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{84307}}^1$

素因数の和:84355

約数の個数: 16

約数和(自身を含む): 44514624

約数和(自身を除く): 22763418

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 84307, 168614, 252921, 505842, 3625201, 7250402, 10875603, 21751206]

約数ペア:

[(1, 21751206), (2, 10875603), (3, 7250402), (6, 3625201), (43, 505842), (86, 252921), (129, 168614), (258, 84307)]