820953

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 1380288

約数和(自身を除く): 559335

約数列:

[1, 3, 7, 9, 21, 63, 83, 157, 249, 471, 581, 747, 1099, 1413, 1743, 3297, 5229, 9891, 13031, 39093, 91217, 117279, 273651, 820953]

約数ペア:

[(1, 820953), (3, 273651), (7, 117279), (9, 91217), (21, 39093), (63, 13031), (83, 9891), (157, 5229), (249, 3297), (471, 1743), (581, 1413), (747, 1099)]