13921895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 19559232

約数和(自身を除く): 5637337

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 293, 559, 731, 1105, 1465, 2795, 3655, 3809, 4981, 9503, 12599, 19045, 24905, 47515, 62995, 64753, 163787, 214183, 323765, 818935, 1070915, 2784379, 13921895]

約数ペア:

[(1, 13921895), (5, 2784379), (13, 1070915), (17, 818935), (43, 323765), (65, 214183), (85, 163787), (215, 64753), (221, 62995), (293, 47515), (559, 24905), (731, 19045), (1105, 12599), (1465, 9503), (2795, 4981), (3655, 3809)]