20012656

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{2971}}^1$

素因数の和:3400

約数の個数: 20

約数和(自身を含む): 38879704

約数和(自身を除く): 18867048

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 2971, 3368, 5942, 6736, 11884, 23768, 47536, 1250791, 2501582, 5003164, 10006328, 20012656]

約数ペア:

[(1, 20012656), (2, 10006328), (4, 5003164), (8, 2501582), (16, 1250791), (421, 47536), (842, 23768), (1684, 11884), (2971, 6736), (3368, 5942)]