20371351

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 27998208

約数和(自身を除く): 7626857

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 433, 517, 611, 1001, 3031, 3619, 4277, 4763, 5629, 6721, 20351, 33341, 39403, 47047, 61919, 142457, 223861, 264563, 433433, 1567027, 1851941, 2910193, 20371351]

約数ペア:

[(1, 20371351), (7, 2910193), (11, 1851941), (13, 1567027), (47, 433433), (77, 264563), (91, 223861), (143, 142457), (329, 61919), (433, 47047), (517, 39403), (611, 33341), (1001, 20351), (3031, 6721), (3619, 5629), (4277, 4763)]