19957031

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1270

約数の個数: 16

約数和(自身を含む): 22581504

約数和(自身を除く): 2624473

約数列:

[1, 17, 23, 43, 391, 731, 989, 1187, 16813, 20179, 27301, 51041, 464117, 867697, 1173943, 19957031]

約数ペア:

[(1, 19957031), (17, 1173943), (23, 867697), (43, 464117), (391, 51041), (731, 27301), (989, 20179), (1187, 16813)]