17996027

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 21430272

約数和(自身を除く): 3434245

約数列:

[1, 7, 31, 127, 217, 653, 889, 3937, 4571, 20243, 27559, 82931, 141701, 580517, 2570861, 17996027]

約数ペア:

[(1, 17996027), (7, 2570861), (31, 580517), (127, 141701), (217, 82931), (653, 27559), (889, 20243), (3937, 4571)]