21137820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32027}}^1$

素因数の和:32050

約数の個数: 48

約数和(自身を含む): 64568448

約数和(自身を除く): 43430628

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32027, 64054, 96081, 128108, 160135, 192162, 320270, 352297, 384324, 480405, 640540, 704594, 960810, 1056891, 1409188, 1761485, 1921620, 2113782, 3522970, 4227564, 5284455, 7045940, 10568910, 21137820]

約数ペア:

[(1, 21137820), (2, 10568910), (3, 7045940), (4, 5284455), (5, 4227564), (6, 3522970), (10, 2113782), (11, 1921620), (12, 1761485), (15, 1409188), (20, 1056891), (22, 960810), (30, 704594), (33, 640540), (44, 480405), (55, 384324), (60, 352297), (66, 320270), (110, 192162), (132, 160135), (165, 128108), (220, 96081), (330, 64054), (660, 32027)]