28279321

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{2843}}^1$

素因数の和:2893

約数の個数: 16

約数和(自身を含む): 34128000

約数和(自身を除く): 5848679

約数列:

[1, 7, 29, 49, 203, 343, 1421, 2843, 9947, 19901, 82447, 139307, 577129, 975149, 4039903, 28279321]

約数ペア:

[(1, 28279321), (7, 4039903), (29, 975149), (49, 577129), (203, 139307), (343, 82447), (1421, 19901), (2843, 9947)]