20940138

素因数分解:

$2^1\times 3^2\times {\mathrm{1049}}^1\times {\mathrm{1109}}^1$

素因数の和:2166

約数の個数: 24

約数和(自身を含む): 45454500

約数和(自身を除く): 24514362

約数列:

[1, 2, 3, 6, 9, 18, 1049, 1109, 2098, 2218, 3147, 3327, 6294, 6654, 9441, 9981, 18882, 19962, 1163341, 2326682, 3490023, 6980046, 10470069, 20940138]

約数ペア:

[(1, 20940138), (2, 10470069), (3, 6980046), (6, 3490023), (9, 2326682), (18, 1163341), (1049, 19962), (1109, 18882), (2098, 9981), (2218, 9441), (3147, 6654), (3327, 6294)]