20640948

素因数分解:

$2^2\times 3^1\times {\mathrm{347}}^1\times {\mathrm{4957}}^1$

素因数の和:5311

約数の個数: 24

約数和(自身を含む): 48310752

約数和(自身を除く): 27669804

約数列:

[1, 2, 3, 4, 6, 12, 347, 694, 1041, 1388, 2082, 4164, 4957, 9914, 14871, 19828, 29742, 59484, 1720079, 3440158, 5160237, 6880316, 10320474, 20640948]

約数ペア:

[(1, 20640948), (2, 10320474), (3, 6880316), (4, 5160237), (6, 3440158), (12, 1720079), (347, 59484), (694, 29742), (1041, 19828), (1388, 14871), (2082, 9914), (4164, 4957)]