19890736

素因数分解:

$2^4\times {\mathrm{523}}^1\times {\mathrm{2377}}^1$

素因数の和:2908

約数の個数: 20

約数和(自身を含む): 38628232

約数和(自身を除く): 18737496

約数列:

[1, 2, 4, 8, 16, 523, 1046, 2092, 2377, 4184, 4754, 8368, 9508, 19016, 38032, 1243171, 2486342, 4972684, 9945368, 19890736]

約数ペア:

[(1, 19890736), (2, 9945368), (4, 4972684), (8, 2486342), (16, 1243171), (523, 38032), (1046, 19016), (2092, 9508), (2377, 8368), (4184, 4754)]