21372543

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{463}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 32428032

約数和(自身を除く): 11055489

約数列:

[1, 3, 9, 23, 69, 207, 223, 463, 669, 1389, 2007, 4167, 5129, 10649, 15387, 31947, 46161, 95841, 103249, 309747, 929241, 2374727, 7124181, 21372543]

約数ペア:

[(1, 21372543), (3, 7124181), (9, 2374727), (23, 929241), (69, 309747), (207, 103249), (223, 95841), (463, 46161), (669, 31947), (1389, 15387), (2007, 10649), (4167, 5129)]