18515483

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2347}}^1$

素因数の和:2391

約数の個数: 16

約数和(自身を含む): 22540800

約数和(自身を除く): 4025317

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2347, 7889, 16429, 53981, 115003, 377867, 805021, 2645069, 18515483]

約数ペア:

[(1, 18515483), (7, 2645069), (23, 805021), (49, 377867), (161, 115003), (343, 53981), (1127, 16429), (2347, 7889)]