260559

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 432432

約数和(自身を除く): 171873

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 131, 153, 221, 393, 663, 1179, 1703, 1989, 2227, 5109, 6681, 15327, 20043, 28951, 86853, 260559]

約数ペア:

[(1, 260559), (3, 86853), (9, 28951), (13, 20043), (17, 15327), (39, 6681), (51, 5109), (117, 2227), (131, 1989), (153, 1703), (221, 1179), (393, 663)]