19804816

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{3673}}^1$

素因数の和:4018

約数の個数: 20

約数和(自身を含む): 38496172

約数和(自身を除く): 18691356

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 3673, 5392, 7346, 14692, 29384, 58768, 1237801, 2475602, 4951204, 9902408, 19804816]

約数ペア:

[(1, 19804816), (2, 9902408), (4, 4951204), (8, 2475602), (16, 1237801), (337, 58768), (674, 29384), (1348, 14692), (2696, 7346), (3673, 5392)]