28129535

素因数分解:

$5^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{991}}^1$

素因数の和:1814

約数の個数: 16

約数和(自身を含む): 38664192

約数和(自身を除く): 10534657

約数列:

[1, 5, 7, 35, 811, 991, 4055, 4955, 5677, 6937, 28385, 34685, 803701, 4018505, 5625907, 28129535]

約数ペア:

[(1, 28129535), (5, 5625907), (7, 4018505), (35, 803701), (811, 34685), (991, 28385), (4055, 6937), (4955, 5677)]