20546905

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:696

約数の個数: 16

約数和(自身を含む): 25401024

約数和(自身を除く): 4854119

約数列:

[1, 5, 43, 215, 227, 421, 1135, 2105, 9761, 18103, 48805, 90515, 95567, 477835, 4109381, 20546905]

約数ペア:

[(1, 20546905), (5, 4109381), (43, 477835), (215, 95567), (227, 90515), (421, 48805), (1135, 18103), (2105, 9761)]