20548971

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14923}}^1$

素因数の和:14952

約数の個数: 20

約数和(自身を含む): 32504472

約数和(自身を除く): 11955501

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14923, 44769, 134307, 253691, 402921, 761073, 1208763, 2283219, 6849657, 20548971]

約数ペア:

[(1, 20548971), (3, 6849657), (9, 2283219), (17, 1208763), (27, 761073), (51, 402921), (81, 253691), (153, 134307), (459, 44769), (1377, 14923)]