19846779

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 27299712

約数和(自身を除く): 7452933

約数列:

[1, 3, 43, 129, 137, 411, 1123, 3369, 5891, 17673, 48289, 144867, 153851, 461553, 6615593, 19846779]

約数ペア:

[(1, 19846779), (3, 6615593), (43, 461553), (129, 153851), (137, 144867), (411, 48289), (1123, 17673), (3369, 5891)]