18538737

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{479}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 30105600

約数和(自身を除く): 11566863

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 479, 679, 1437, 1843, 2037, 3353, 5529, 9101, 10059, 12901, 27303, 38703, 46463, 63707, 139389, 191121, 325241, 882797, 975723, 2648391, 6179579, 18538737]

約数ペア:

[(1, 18538737), (3, 6179579), (7, 2648391), (19, 975723), (21, 882797), (57, 325241), (97, 191121), (133, 139389), (291, 63707), (399, 46463), (479, 38703), (679, 27303), (1437, 12901), (1843, 10059), (2037, 9101), (3353, 5529)]