21539536

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28643}}^1$

素因数の和:28698

約数の個数: 20

約数和(自身を含む): 42622272

約数和(自身を除く): 21082736

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28643, 57286, 114572, 229144, 458288, 1346221, 2692442, 5384884, 10769768, 21539536]

約数ペア:

[(1, 21539536), (2, 10769768), (4, 5384884), (8, 2692442), (16, 1346221), (47, 458288), (94, 229144), (188, 114572), (376, 57286), (752, 28643)]