21087031

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{953}}^1$

素因数の和:1098

約数の個数: 16

約数和(自身を含む): 25185600

約数和(自身を除く): 4098569

約数列:

[1, 7, 29, 109, 203, 763, 953, 3161, 6671, 22127, 27637, 103877, 193459, 727139, 3012433, 21087031]

約数ペア:

[(1, 21087031), (7, 3012433), (29, 727139), (109, 193459), (203, 103877), (763, 27637), (953, 22127), (3161, 6671)]