28785701

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1217}}^1$

素因数の和:1364

約数の個数: 16

約数和(自身を含む): 34298880

約数和(自身を除く): 5513179

約数列:

[1, 7, 31, 109, 217, 763, 1217, 3379, 8519, 23653, 37727, 132653, 264089, 928571, 4112243, 28785701]

約数ペア:

[(1, 28785701), (7, 4112243), (31, 928571), (109, 264089), (217, 132653), (763, 37727), (1217, 23653), (3379, 8519)]