21141555

素因数分解:

$3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4591}}^1$

素因数の和:4906

約数の個数: 16

約数和(自身を含む): 33944064

約数和(自身を除く): 12802509

約数列:

[1, 3, 5, 15, 307, 921, 1535, 4591, 4605, 13773, 22955, 68865, 1409437, 4228311, 7047185, 21141555]

約数ペア:

[(1, 21141555), (3, 7047185), (5, 4228311), (15, 1409437), (307, 68865), (921, 22955), (1535, 13773), (4591, 4605)]