20807846744

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{139291}}^1$

素因数の和:139631

約数の個数: 32

約数和(自身を含む): 39714935040

約数和(自身を除く): 18907088296

約数列:

[1, 2, 4, 8, 71, 142, 263, 284, 526, 568, 1052, 2104, 18673, 37346, 74692, 139291, 149384, 278582, 557164, 1114328, 9889661, 19779322, 36633533, 39558644, 73267066, 79117288, 146534132, 293068264, 2600980843, 5201961686, 10403923372, 20807846744]

約数ペア:

[(1, 20807846744), (2, 10403923372), (4, 5201961686), (8, 2600980843), (71, 293068264), (142, 146534132), (263, 79117288), (284, 73267066), (526, 39558644), (568, 36633533), (1052, 19779322), (2104, 9889661), (18673, 1114328), (37346, 557164), (74692, 278582), (139291, 149384)]