20391735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14939}}^1$

素因数の和:14967

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 19766985

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 14939, 44817, 74695, 104573, 194207, 224085, 313719, 522865, 582621, 971035, 1359449, 1568595, 2913105, 4078347, 6797245, 20391735]

約数ペア:

[(1, 20391735), (3, 6797245), (5, 4078347), (7, 2913105), (13, 1568595), (15, 1359449), (21, 971035), (35, 582621), (39, 522865), (65, 313719), (91, 224085), (105, 194207), (195, 104573), (273, 74695), (455, 44817), (1365, 14939)]