21070288

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28019}}^1$

素因数の和:28074

約数の個数: 20

約数和(自身を含む): 41693760

約数和(自身を除く): 20623472

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28019, 56038, 112076, 224152, 448304, 1316893, 2633786, 5267572, 10535144, 21070288]

約数ペア:

[(1, 21070288), (2, 10535144), (4, 5267572), (8, 2633786), (16, 1316893), (47, 448304), (94, 224152), (188, 112076), (376, 56038), (752, 28019)]