21979036

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{1531}}^1$

素因数の和:1669

約数の個数: 24

約数和(自身を含む): 39936176

約数和(自身を除く): 17957140

約数列:

[1, 2, 4, 37, 74, 97, 148, 194, 388, 1531, 3062, 3589, 6124, 7178, 14356, 56647, 113294, 148507, 226588, 297014, 594028, 5494759, 10989518, 21979036]

約数ペア:

[(1, 21979036), (2, 10989518), (4, 5494759), (37, 594028), (74, 297014), (97, 226588), (148, 148507), (194, 113294), (388, 56647), (1531, 14356), (3062, 7178), (3589, 6124)]