72121903

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2617}}^1$

素因数の和:2782

約数の個数: 16

約数和(自身を含む): 85786624

約数和(自身を除く): 13664721

約数列:

[1, 7, 31, 127, 217, 889, 2617, 3937, 18319, 27559, 81127, 332359, 567889, 2326513, 10303129, 72121903]

約数ペア:

[(1, 72121903), (7, 10303129), (31, 2326513), (127, 567889), (217, 332359), (889, 81127), (2617, 27559), (3937, 18319)]