21049441

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1033}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 25014528

約数和(自身を除く): 3965087

約数列:

[1, 7, 41, 71, 287, 497, 1033, 2911, 7231, 20377, 42353, 73343, 296471, 513401, 3007063, 21049441]

約数ペア:

[(1, 21049441), (7, 3007063), (41, 513401), (71, 296471), (287, 73343), (497, 42353), (1033, 20377), (2911, 7231)]