18528021

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4013}}^1$

素因数の和:4047

約数の個数: 24

約数和(自身を含む): 29221920

約数和(自身を除く): 10693899

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4013, 4617, 12039, 36117, 76247, 108351, 228741, 325053, 686223, 975159, 2058669, 6176007, 18528021]

約数ペア:

[(1, 18528021), (3, 6176007), (9, 2058669), (19, 975159), (27, 686223), (57, 325053), (81, 228741), (171, 108351), (243, 76247), (513, 36117), (1539, 12039), (4013, 4617)]