20987150865

素因数分解:

$3^1\times 5^1\times {\mathrm{563}}^1\times {\mathrm{641}}^1\times {\mathrm{3877}}^1$

素因数の和:5089

約数の個数: 32

約数和(自身を含む): 33700254336

約数和(自身を除く): 12713103471

約数列:

[1, 3, 5, 15, 563, 641, 1689, 1923, 2815, 3205, 3877, 8445, 9615, 11631, 19385, 58155, 360883, 1082649, 1804415, 2182751, 2485157, 5413245, 6548253, 7455471, 10913755, 12425785, 32741265, 37277355, 1399143391, 4197430173, 6995716955, 20987150865]

約数ペア:

[(1, 20987150865), (3, 6995716955), (5, 4197430173), (15, 1399143391), (563, 37277355), (641, 32741265), (1689, 12425785), (1923, 10913755), (2815, 7455471), (3205, 6548253), (3877, 5413245), (8445, 2485157), (9615, 2182751), (11631, 1804415), (19385, 1082649), (58155, 360883)]