19747567

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{311}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 23242752

約数和(自身を除く): 3495185

約数列:

[1, 7, 47, 193, 311, 329, 1351, 2177, 9071, 14617, 60023, 63497, 102319, 420161, 2821081, 19747567]

約数ペア:

[(1, 19747567), (7, 2821081), (47, 420161), (193, 102319), (311, 63497), (329, 60023), (1351, 14617), (2177, 9071)]