21906999

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1093}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 33791472

約数和(自身を除く): 11884473

約数列:

[1, 3, 9, 17, 51, 131, 153, 393, 1093, 1179, 2227, 3279, 6681, 9837, 18581, 20043, 55743, 143183, 167229, 429549, 1288647, 2434111, 7302333, 21906999]

約数ペア:

[(1, 21906999), (3, 7302333), (9, 2434111), (17, 1288647), (51, 429549), (131, 167229), (153, 143183), (393, 55743), (1093, 20043), (1179, 18581), (2227, 9837), (3279, 6681)]