20879217212

素因数分解:

$2^2\times 7^1\times {\mathrm{829}}^1\times {\mathrm{881}}^1\times {\mathrm{1021}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 41897257920

約数和(自身を除く): 21018040708

約数列:

[1, 2, 4, 7, 14, 28, 829, 881, 1021, 1658, 1762, 2042, 3316, 3524, 4084, 5803, 6167, 7147, 11606, 12334, 14294, 23212, 24668, 28588, 730349, 846409, 899501, 1460698, 1692818, 1799002, 2921396, 3385636, 3598004, 5112443, 5924863, 6296507, 10224886, 11849726, 12593014, 20449772, 23699452, 25186028, 745686329, 1491372658, 2982745316, 5219804303, 10439608606, 20879217212]

約数ペア:

[(1, 20879217212), (2, 10439608606), (4, 5219804303), (7, 2982745316), (14, 1491372658), (28, 745686329), (829, 25186028), (881, 23699452), (1021, 20449772), (1658, 12593014), (1762, 11849726), (2042, 10224886), (3316, 6296507), (3524, 5924863), (4084, 5112443), (5803, 3598004), (6167, 3385636), (7147, 2921396), (11606, 1799002), (12334, 1692818), (14294, 1460698), (23212, 899501), (24668, 846409), (28588, 730349)]