618393609

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{269}}^1\times {\mathrm{281}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 939719880

約数和(自身を除く): 321326271

約数列:

[1, 3, 9, 27, 81, 101, 269, 281, 303, 807, 843, 909, 2421, 2529, 2727, 7263, 7587, 8181, 21789, 22761, 27169, 28381, 75589, 81507, 85143, 226767, 244521, 255429, 680301, 733563, 766287, 2040903, 2200689, 2298861, 6122709, 7634489, 22903467, 68710401, 206131203, 618393609]

約数ペア:

[(1, 618393609), (3, 206131203), (9, 68710401), (27, 22903467), (81, 7634489), (101, 6122709), (269, 2298861), (281, 2200689), (303, 2040903), (807, 766287), (843, 733563), (909, 680301), (2421, 255429), (2529, 244521), (2727, 226767), (7263, 85143), (7587, 81507), (8181, 75589), (21789, 28381), (22761, 27169)]