28220563

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{7621}}^1$

素因数の和:7674

約数の個数: 12

約数和(自身を含む): 33719728

約数和(自身を除く): 5499165

約数列:

[1, 7, 23, 161, 529, 3703, 7621, 53347, 175283, 1226981, 4031509, 28220563]

約数ペア:

[(1, 28220563), (7, 4031509), (23, 1226981), (161, 175283), (529, 53347), (3703, 7621)]