821330290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{392981}}^1$

素因数の和:393018

約数の個数: 32

約数和(自身を含む): 1697682240

約数和(自身を除く): 876351950

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 392981, 785962, 1964905, 3929810, 4322791, 7466639, 8645582, 14933278, 21613955, 37333195, 43227910, 74666390, 82133029, 164266058, 410665145, 821330290]

約数ペア:

[(1, 821330290), (2, 410665145), (5, 164266058), (10, 82133029), (11, 74666390), (19, 43227910), (22, 37333195), (38, 21613955), (55, 14933278), (95, 8645582), (110, 7466639), (190, 4322791), (209, 3929810), (418, 1964905), (1045, 785962), (2090, 392981)]