28196781

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{2447}}^1$

素因数の和:2640

約数の個数: 16

約数和(自身を含む): 39481344

約数和(自身を除く): 11284563

約数列:

[1, 3, 23, 69, 167, 501, 2447, 3841, 7341, 11523, 56281, 168843, 408649, 1225947, 9398927, 28196781]

約数ペア:

[(1, 28196781), (3, 9398927), (23, 1225947), (69, 408649), (167, 168843), (501, 56281), (2447, 11523), (3841, 7341)]