20546428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23671}}^1$

素因数の和:23713

約数の個数: 24

約数和(自身を含む): 42420224

約数和(自身を除く): 21873796

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23671, 47342, 94684, 165697, 331394, 662788, 733801, 1467602, 2935204, 5136607, 10273214, 20546428]

約数ペア:

[(1, 20546428), (2, 10273214), (4, 5136607), (7, 2935204), (14, 1467602), (28, 733801), (31, 662788), (62, 331394), (124, 165697), (217, 94684), (434, 47342), (868, 23671)]