20405896

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{7753}}^1$

素因数の和:7813

約数の個数: 32

約数和(自身を含む): 44663040

約数和(自身を除く): 24257144

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 7753, 15506, 31012, 54271, 62024, 108542, 217084, 364391, 434168, 728782, 1457564, 2550737, 2915128, 5101474, 10202948, 20405896]

約数ペア:

[(1, 20405896), (2, 10202948), (4, 5101474), (7, 2915128), (8, 2550737), (14, 1457564), (28, 728782), (47, 434168), (56, 364391), (94, 217084), (188, 108542), (329, 62024), (376, 54271), (658, 31012), (1316, 15506), (2632, 7753)]