2021640299

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{410819}}^1$

素因数の和:410882

約数の個数: 16

約数和(自身を含む): 2497785600

約数和(自身を除く): 476145301

約数列:

[1, 7, 19, 37, 133, 259, 703, 4921, 410819, 2875733, 7805561, 15200303, 54638927, 106402121, 288805757, 2021640299]

約数ペア:

[(1, 2021640299), (7, 288805757), (19, 106402121), (37, 54638927), (133, 15200303), (259, 7805561), (703, 2875733), (4921, 410819)]