20982806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15227}}^1$

素因数の和:15295

約数の個数: 16

約数和(自身を含む): 34537104

約数和(自身を除く): 13554298

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15227, 30454, 197951, 395902, 807031, 1614062, 10491403, 20982806]

約数ペア:

[(1, 20982806), (2, 10491403), (13, 1614062), (26, 807031), (53, 395902), (106, 197951), (689, 30454), (1378, 15227)]