19738257

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{85447}}^1$

素因数の和:85468

約数の個数: 16

約数和(自身を含む): 32812032

約数和(自身を除く): 13073775

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 85447, 256341, 598129, 939917, 1794387, 2819751, 6579419, 19738257]

約数ペア:

[(1, 19738257), (3, 6579419), (7, 2819751), (11, 1794387), (21, 939917), (33, 598129), (77, 256341), (231, 85447)]