21222453

素因数分解:

$3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{3571}}^1$

素因数の和:3864

約数の個数: 16

約数和(自身を含む): 32462336

約数和(自身を除く): 11239883

約数列:

[1, 3, 7, 21, 283, 849, 1981, 3571, 5943, 10713, 24997, 74991, 1010593, 3031779, 7074151, 21222453]

約数ペア:

[(1, 21222453), (3, 7074151), (7, 3031779), (21, 1010593), (283, 74991), (849, 24997), (1981, 10713), (3571, 5943)]