256542121

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 32

約数和(自身を含む): 306685440

約数和(自身を除く): 50143319

約数列:

[1, 11, 17, 47, 101, 187, 289, 517, 799, 1111, 1717, 3179, 4747, 4913, 8789, 13583, 18887, 29189, 52217, 54043, 80699, 149413, 230911, 321079, 496213, 887689, 1371883, 2540021, 5458343, 15090713, 23322011, 256542121]

約数ペア:

[(1, 256542121), (11, 23322011), (17, 15090713), (47, 5458343), (101, 2540021), (187, 1371883), (289, 887689), (517, 496213), (799, 321079), (1111, 230911), (1717, 149413), (3179, 80699), (4747, 54043), (4913, 52217), (8789, 29189), (13583, 18887)]