21863020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64303}}^1$

素因数の和:64329

約数の個数: 24

約数和(自身を含む): 48613824

約数和(自身を除く): 26750804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 64303, 128606, 257212, 321515, 643030, 1093151, 1286060, 2186302, 4372604, 5465755, 10931510, 21863020]

約数ペア:

[(1, 21863020), (2, 10931510), (4, 5465755), (5, 4372604), (10, 2186302), (17, 1286060), (20, 1093151), (34, 643030), (68, 321515), (85, 257212), (170, 128606), (340, 64303)]