13472721

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 20765160

約数和(自身を除く): 7292439

約数列:

[1, 3, 9, 17, 51, 153, 173, 509, 519, 1527, 1557, 2941, 4581, 8653, 8823, 25959, 26469, 77877, 88057, 264171, 792513, 1496969, 4490907, 13472721]

約数ペア:

[(1, 13472721), (3, 4490907), (9, 1496969), (17, 792513), (51, 264171), (153, 88057), (173, 77877), (509, 26469), (519, 25959), (1527, 8823), (1557, 8653), (2941, 4581)]