21619087

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1307}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 26369280

約数和(自身を除く): 4750193

約数列:

[1, 7, 17, 119, 139, 973, 1307, 2363, 9149, 16541, 22219, 155533, 181673, 1271711, 3088441, 21619087]

約数ペア:

[(1, 21619087), (7, 3088441), (17, 1271711), (119, 181673), (139, 155533), (973, 22219), (1307, 16541), (2363, 9149)]