21274953

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2477}}^1$

素因数の和:2896

約数の個数: 16

約数和(自身を含む): 32511360

約数和(自身を除く): 11236407

約数列:

[1, 3, 7, 21, 409, 1227, 2477, 2863, 7431, 8589, 17339, 52017, 1013093, 3039279, 7091651, 21274953]

約数ペア:

[(1, 21274953), (3, 7091651), (7, 3039279), (21, 1013093), (409, 52017), (1227, 17339), (2477, 8589), (2863, 7431)]