19757871

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{977}}^1$

素因数の和:1100

約数の個数: 32

約数和(自身を含む): 33799680

約数和(自身を除く): 14041809

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 977, 2247, 2889, 2931, 6741, 6839, 8793, 20223, 20517, 26379, 61551, 104539, 184653, 313617, 731773, 940851, 2195319, 2822553, 6585957, 19757871]

約数ペア:

[(1, 19757871), (3, 6585957), (7, 2822553), (9, 2195319), (21, 940851), (27, 731773), (63, 313617), (107, 184653), (189, 104539), (321, 61551), (749, 26379), (963, 20517), (977, 20223), (2247, 8793), (2889, 6839), (2931, 6741)]