2801421

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 4717440

約数和(自身を除く): 1916019

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 839, 1113, 2517, 3339, 5873, 7551, 17619, 44467, 52857, 133401, 311269, 400203, 933807, 2801421]

約数ペア:

[(1, 2801421), (3, 933807), (7, 400203), (9, 311269), (21, 133401), (53, 52857), (63, 44467), (159, 17619), (371, 7551), (477, 5873), (839, 3339), (1113, 2517)]