20161257615

素因数分解:

$3^4\times 5^1\times {\mathrm{2591}}^1\times {\mathrm{19213}}^1$

素因数の和:21821

約数の個数: 40

約数和(自身を含む): 36156751488

約数和(自身を除く): 15995493873

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2591, 7773, 12955, 19213, 23319, 38865, 57639, 69957, 96065, 116595, 172917, 209871, 288195, 349785, 518751, 864585, 1049355, 1556253, 2593755, 7781265, 49780883, 149342649, 248904415, 448027947, 746713245, 1344083841, 2240139735, 4032251523, 6720419205, 20161257615]

約数ペア:

[(1, 20161257615), (3, 6720419205), (5, 4032251523), (9, 2240139735), (15, 1344083841), (27, 746713245), (45, 448027947), (81, 248904415), (135, 149342649), (405, 49780883), (2591, 7781265), (7773, 2593755), (12955, 1556253), (19213, 1049355), (23319, 864585), (38865, 518751), (57639, 349785), (69957, 288195), (96065, 209871), (116595, 172917)]