1851355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 2485728

約数和(自身を除く): 634373

約数列:

[1, 5, 11, 41, 55, 205, 451, 821, 2255, 4105, 9031, 33661, 45155, 168305, 370271, 1851355]

約数ペア:

[(1, 1851355), (5, 370271), (11, 168305), (41, 45155), (55, 33661), (205, 9031), (451, 4105), (821, 2255)]