16990803

素因数分解:

$3^7\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 27040320

約数和(自身を除く): 10049517

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 457, 459, 729, 1371, 1377, 2187, 4113, 4131, 7769, 12339, 12393, 23307, 37017, 37179, 69921, 111051, 209763, 333153, 629289, 999459, 1887867, 5663601, 16990803]

約数ペア:

[(1, 16990803), (3, 5663601), (9, 1887867), (17, 999459), (27, 629289), (51, 333153), (81, 209763), (153, 111051), (243, 69921), (457, 37179), (459, 37017), (729, 23307), (1371, 12393), (1377, 12339), (2187, 7769), (4113, 4131)]