20792513

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 25957800

約数和(自身を除く): 5165287

約数列:

[1, 7, 17, 49, 109, 119, 229, 763, 833, 1603, 1853, 3893, 5341, 11221, 12971, 24961, 27251, 90797, 174727, 190757, 424337, 1223089, 2970359, 20792513]

約数ペア:

[(1, 20792513), (7, 2970359), (17, 1223089), (49, 424337), (109, 190757), (119, 174727), (229, 90797), (763, 27251), (833, 24961), (1603, 12971), (1853, 11221), (3893, 5341)]