20389413

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1049}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11866587

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 209, 341, 589, 627, 1023, 1049, 1767, 3147, 6479, 11539, 19437, 19931, 32519, 34617, 59793, 97557, 219241, 357709, 617861, 657723, 1073127, 1853583, 6796471, 20389413]

約数ペア:

[(1, 20389413), (3, 6796471), (11, 1853583), (19, 1073127), (31, 657723), (33, 617861), (57, 357709), (93, 219241), (209, 97557), (341, 59793), (589, 34617), (627, 32519), (1023, 19931), (1049, 19437), (1767, 11539), (3147, 6479)]