28665405

素因数分解:

$3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3019}}^1$

素因数の和:3241

約数の個数: 24

約数和(自身を含む): 49938720

約数和(自身を除く): 21273315

約数列:

[1, 3, 5, 9, 15, 45, 211, 633, 1055, 1899, 3019, 3165, 9057, 9495, 15095, 27171, 45285, 135855, 637009, 1911027, 3185045, 5733081, 9555135, 28665405]

約数ペア:

[(1, 28665405), (3, 9555135), (5, 5733081), (9, 3185045), (15, 1911027), (45, 637009), (211, 135855), (633, 45285), (1055, 27171), (1899, 15095), (3019, 9495), (3165, 9057)]