21450906

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{7789}}^1$

素因数の和:7820

約数の個数: 40

約数和(自身を含む): 50899860

約数和(自身を除く): 29448954

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 306, 459, 918, 1377, 2754, 7789, 15578, 23367, 46734, 70101, 132413, 140202, 210303, 264826, 397239, 420606, 630909, 794478, 1191717, 1261818, 2383434, 3575151, 7150302, 10725453, 21450906]

約数ペア:

[(1, 21450906), (2, 10725453), (3, 7150302), (6, 3575151), (9, 2383434), (17, 1261818), (18, 1191717), (27, 794478), (34, 630909), (51, 420606), (54, 397239), (81, 264826), (102, 210303), (153, 140202), (162, 132413), (306, 70101), (459, 46734), (918, 23367), (1377, 15578), (2754, 7789)]