20264881

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1097}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 26286120

約数和(自身を除く): 6021239

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1097, 1421, 2639, 7679, 14261, 18473, 31813, 53753, 99827, 222691, 413569, 698789, 1558837, 2894983, 20264881]

約数ペア:

[(1, 20264881), (7, 2894983), (13, 1558837), (29, 698789), (49, 413569), (91, 222691), (203, 99827), (377, 53753), (637, 31813), (1097, 18473), (1421, 14261), (2639, 7679)]