21363881

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2293}}^1$

素因数の和:2333

約数の個数: 16

約数和(自身を含む): 26867328

約数和(自身を除く): 5503447

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2293, 9317, 16051, 25223, 176561, 277453, 1942171, 3051983, 21363881]

約数ペア:

[(1, 21363881), (7, 3051983), (11, 1942171), (77, 277453), (121, 176561), (847, 25223), (1331, 16051), (2293, 9317)]