19854021

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2341}}^1$

素因数の和:2612

約数の個数: 16

約数和(自身を含む): 29003328

約数和(自身を除く): 9149307

約数列:

[1, 3, 11, 33, 257, 771, 2341, 2827, 7023, 8481, 25751, 77253, 601637, 1804911, 6618007, 19854021]

約数ペア:

[(1, 19854021), (3, 6618007), (11, 1804911), (33, 601637), (257, 77253), (771, 25751), (2341, 8481), (2827, 7023)]