20971376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42281}}^1$

素因数の和:42320

約数の個数: 20

約数和(自身を含む): 41943744

約数和(自身を除く): 20972368

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42281, 84562, 169124, 338248, 676496, 1310711, 2621422, 5242844, 10485688, 20971376]

約数ペア:

[(1, 20971376), (2, 10485688), (4, 5242844), (8, 2621422), (16, 1310711), (31, 676496), (62, 338248), (124, 169124), (248, 84562), (496, 42281)]