18912831

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39157}}^1$

素因数の和:39190

約数の個数: 16

約数和(自身を含む): 30073344

約数和(自身を除く): 11160513

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 39157, 117471, 274099, 822297, 900611, 2701833, 6304277, 18912831]

約数ペア:

[(1, 18912831), (3, 6304277), (7, 2701833), (21, 900611), (23, 822297), (69, 274099), (161, 117471), (483, 39157)]