19995281

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 22063104

約数和(自身を除く): 2067823

約数列:

[1, 17, 37, 83, 383, 629, 1411, 3071, 6511, 14171, 31789, 52207, 240907, 540413, 1176193, 19995281]

約数ペア:

[(1, 19995281), (17, 1176193), (37, 540413), (83, 240907), (383, 52207), (629, 31789), (1411, 14171), (3071, 6511)]