1900997903

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 2282618880

約数和(自身を除く): 381620977

約数列:

[1, 7, 31, 89, 217, 257, 383, 623, 1799, 2681, 2759, 7967, 11873, 19313, 22873, 34087, 55769, 83111, 98431, 160111, 238609, 689017, 709063, 1056697, 3051361, 4963441, 7396879, 8760359, 21359527, 61322513, 271571129, 1900997903]

約数ペア:

[(1, 1900997903), (7, 271571129), (31, 61322513), (89, 21359527), (217, 8760359), (257, 7396879), (383, 4963441), (623, 3051361), (1799, 1056697), (2681, 709063), (2759, 689017), (7967, 238609), (11873, 160111), (19313, 98431), (22873, 83111), (34087, 55769)]