19894959

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6719}}^1$

素因数の和:6779

約数の個数: 24

約数和(自身を含む): 33546240

約数和(自身を除く): 13651281

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6719, 20157, 47033, 60471, 141099, 315793, 423297, 947379, 2210551, 2842137, 6631653, 19894959]

約数ペア:

[(1, 19894959), (3, 6631653), (7, 2842137), (9, 2210551), (21, 947379), (47, 423297), (63, 315793), (141, 141099), (329, 60471), (423, 47033), (987, 20157), (2961, 6719)]