28142947

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2538

約数の個数: 16

約数和(自身を含む): 33841152

約数和(自身を除く): 5698205

約数列:

[1, 7, 31, 53, 217, 371, 1643, 2447, 11501, 17129, 75857, 129691, 530999, 907837, 4020421, 28142947]

約数ペア:

[(1, 28142947), (7, 4020421), (31, 907837), (53, 530999), (217, 129691), (371, 75857), (1643, 17129), (2447, 11501)]