20599995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 35784000

約数和(自身を除く): 15184005

約数列:

[1, 3, 5, 13, 15, 39, 65, 149, 195, 447, 709, 745, 1937, 2127, 2235, 3545, 5811, 9217, 9685, 10635, 27651, 29055, 46085, 105641, 138255, 316923, 528205, 1373333, 1584615, 4119999, 6866665, 20599995]

約数ペア:

[(1, 20599995), (3, 6866665), (5, 4119999), (13, 1584615), (15, 1373333), (39, 528205), (65, 316923), (149, 138255), (195, 105641), (447, 46085), (709, 29055), (745, 27651), (1937, 10635), (2127, 9685), (2235, 9217), (3545, 5811)]