21882077

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 27312120

約数和(自身を除く): 5430043

約数列:

[1, 7, 17, 49, 109, 119, 241, 763, 833, 1687, 1853, 4097, 5341, 11809, 12971, 26269, 28679, 90797, 183883, 200753, 446573, 1287181, 3126011, 21882077]

約数ペア:

[(1, 21882077), (7, 3126011), (17, 1287181), (49, 446573), (109, 200753), (119, 183883), (241, 90797), (763, 28679), (833, 26269), (1687, 12971), (1853, 11809), (4097, 5341)]