21013598

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19937}}^1$

素因数の和:19987

約数の個数: 16

約数和(自身を含む): 34452864

約数和(自身を除く): 13439266

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19937, 39874, 338929, 618047, 677858, 1236094, 10506799, 21013598]

約数ペア:

[(1, 21013598), (2, 10506799), (17, 1236094), (31, 677858), (34, 618047), (62, 338929), (527, 39874), (1054, 19937)]