21929515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{643}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 5891285

約数列:

[1, 5, 19, 95, 359, 643, 1795, 3215, 6821, 12217, 34105, 61085, 230837, 1154185, 4385903, 21929515]

約数ペア:

[(1, 21929515), (5, 4385903), (19, 1154185), (95, 230837), (359, 61085), (643, 34105), (1795, 12217), (3215, 6821)]