208539891

素因数分解:

$3^2\times 7^1\times {\mathrm{659}}^1\times {\mathrm{5023}}^1$

素因数の和:5695

約数の個数: 24

約数和(自身を含む): 344847360

約数和(自身を除く): 136307469

約数列:

[1, 3, 7, 9, 21, 63, 659, 1977, 4613, 5023, 5931, 13839, 15069, 35161, 41517, 45207, 105483, 316449, 3310157, 9930471, 23171099, 29791413, 69513297, 208539891]

約数ペア:

[(1, 208539891), (3, 69513297), (7, 29791413), (9, 23171099), (21, 9930471), (63, 3310157), (659, 316449), (1977, 105483), (4613, 45207), (5023, 41517), (5931, 35161), (13839, 15069)]