21125643

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{91453}}^1$

素因数の和:91474

約数の個数: 16

約数和(自身を含む): 35118336

約数和(自身を除く): 13992693

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 91453, 274359, 640171, 1005983, 1920513, 3017949, 7041881, 21125643]

約数ペア:

[(1, 21125643), (3, 7041881), (7, 3017949), (11, 1920513), (21, 1005983), (33, 640171), (77, 274359), (231, 91453)]