9990945

素因数分解:

$3^6\times 5^1\times {\mathrm{2741}}^1$

素因数の和:2764

約数の個数: 28

約数和(自身を含む): 17982036

約数和(自身を除く): 7991091

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2741, 3645, 8223, 13705, 24669, 41115, 74007, 123345, 222021, 370035, 666063, 1110105, 1998189, 3330315, 9990945]

約数ペア:

[(1, 9990945), (3, 3330315), (5, 1998189), (9, 1110105), (15, 666063), (27, 370035), (45, 222021), (81, 123345), (135, 74007), (243, 41115), (405, 24669), (729, 13705), (1215, 8223), (2741, 3645)]