21260865

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17077}}^1$

素因数の和:17168

約数の個数: 16

約数和(自身を含む): 34429248

約数和(自身を除く): 13168383

約数列:

[1, 3, 5, 15, 83, 249, 415, 1245, 17077, 51231, 85385, 256155, 1417391, 4252173, 7086955, 21260865]

約数ペア:

[(1, 21260865), (3, 7086955), (5, 4252173), (15, 1417391), (83, 256155), (249, 85385), (415, 51231), (1245, 17077)]