258765921

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{607}}^1$

素因数の和:915

約数の個数: 40

約数和(自身を含む): 409038080

約数和(自身を除く): 150272159

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 277, 513, 607, 831, 1539, 1821, 2493, 5263, 5463, 7479, 11533, 15789, 16389, 22437, 34599, 47367, 49167, 103797, 142101, 168139, 311391, 426303, 504417, 934173, 1513251, 3194641, 4539753, 9583923, 13619259, 28751769, 86255307, 258765921]

約数ペア:

[(1, 258765921), (3, 86255307), (9, 28751769), (19, 13619259), (27, 9583923), (57, 4539753), (81, 3194641), (171, 1513251), (277, 934173), (513, 504417), (607, 426303), (831, 311391), (1539, 168139), (1821, 142101), (2493, 103797), (5263, 49167), (5463, 47367), (7479, 34599), (11533, 22437), (15789, 16389)]