28039781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{433}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 36289344

約数和(自身を除く): 8249563

約数列:

[1, 7, 11, 29, 77, 203, 319, 433, 841, 2233, 3031, 4763, 5887, 9251, 12557, 33341, 64757, 87899, 138127, 364153, 966889, 2549071, 4005683, 28039781]

約数ペア:

[(1, 28039781), (7, 4005683), (11, 2549071), (29, 966889), (77, 364153), (203, 138127), (319, 87899), (433, 64757), (841, 33341), (2233, 12557), (3031, 9251), (4763, 5887)]