18808321

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 22325760

約数和(自身を除く): 3517439

約数列:

[1, 7, 37, 101, 259, 707, 719, 3737, 5033, 26159, 26603, 72619, 186221, 508333, 2686903, 18808321]

約数ペア:

[(1, 18808321), (7, 2686903), (37, 508333), (101, 186221), (259, 72619), (707, 26603), (719, 26159), (3737, 5033)]