21122559

素因数分解:

$3^3\times {\mathrm{461}}^1\times {\mathrm{1697}}^1$

素因数の和:2167

約数の個数: 16

約数和(自身を含む): 31379040

約数和(自身を除く): 10256481

約数列:

[1, 3, 9, 27, 461, 1383, 1697, 4149, 5091, 12447, 15273, 45819, 782317, 2346951, 7040853, 21122559]

約数ペア:

[(1, 21122559), (3, 7040853), (9, 2346951), (27, 782317), (461, 45819), (1383, 15273), (1697, 12447), (4149, 5091)]