21288033

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3433}}^1$

素因数の和:3505

約数の個数: 24

約数和(自身を含む): 33749352

約数和(自身を除く): 12461319

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3433, 6201, 10299, 30897, 44629, 133887, 181949, 401661, 545847, 1637541, 2365337, 7096011, 21288033]

約数ペア:

[(1, 21288033), (3, 7096011), (9, 2365337), (13, 1637541), (39, 545847), (53, 401661), (117, 181949), (159, 133887), (477, 44629), (689, 30897), (2067, 10299), (3433, 6201)]