21228585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1117}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 39067392

約数和(自身を除く): 17838807

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 181, 543, 905, 1117, 1267, 2715, 3351, 3801, 5585, 6335, 7819, 16755, 19005, 23457, 39095, 117285, 202177, 606531, 1010885, 1415239, 3032655, 4245717, 7076195, 21228585]

約数ペア:

[(1, 21228585), (3, 7076195), (5, 4245717), (7, 3032655), (15, 1415239), (21, 1010885), (35, 606531), (105, 202177), (181, 117285), (543, 39095), (905, 23457), (1117, 19005), (1267, 16755), (2715, 7819), (3351, 6335), (3801, 5585)]