18997426

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{25603}}^1$

素因数の和:25665

約数の個数: 16

約数和(自身を含む): 33182784

約数和(自身を除く): 14185358

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 25603, 51206, 179221, 358442, 1356959, 2713918, 9498713, 18997426]

約数ペア:

[(1, 18997426), (2, 9498713), (7, 2713918), (14, 1356959), (53, 358442), (106, 179221), (371, 51206), (742, 25603)]