21154743

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10733}}^1$

素因数の和:10815

約数の個数: 16

約数和(自身を含む): 31772640

約数和(自身を除く): 10617897

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10733, 32199, 96597, 289791, 783509, 2350527, 7051581, 21154743]

約数ペア:

[(1, 21154743), (3, 7051581), (9, 2350527), (27, 783509), (73, 289791), (219, 96597), (657, 32199), (1971, 10733)]