19889847

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2549}}^1$

素因数の和:2592

約数の個数: 24

約数和(自身を含む): 31314000

約数和(自身を除く): 11424153

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2549, 2601, 7647, 7803, 22941, 43333, 68823, 129999, 389997, 736661, 1169991, 2209983, 6629949, 19889847]

約数ペア:

[(1, 19889847), (3, 6629949), (9, 2209983), (17, 1169991), (27, 736661), (51, 389997), (153, 129999), (289, 68823), (459, 43333), (867, 22941), (2549, 7803), (2601, 7647)]