28691089

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1360

約数の個数: 16

約数和(自身を含む): 34186240

約数和(自身を除く): 5495151

約数列:

[1, 7, 31, 109, 217, 763, 1213, 3379, 8491, 23653, 37603, 132217, 263221, 925519, 4098727, 28691089]

約数ペア:

[(1, 28691089), (7, 4098727), (31, 925519), (109, 263221), (217, 132217), (763, 37603), (1213, 23653), (3379, 8491)]