19972702321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{4373}}^1$

素因数の和:4498

約数の個数: 48

約数和(自身を含む): 25322310720

約数和(自身を除く): 5349608399

約数列:

[1, 11, 13, 19, 41, 143, 209, 247, 451, 533, 779, 1681, 2717, 4373, 5863, 8569, 10127, 18491, 21853, 31939, 48103, 56849, 83087, 111397, 179293, 240383, 351329, 415207, 625339, 913957, 1080131, 1972223, 2330809, 3406567, 4567277, 7351013, 11881441, 25638899, 37472237, 44285371, 80861143, 95563169, 139669247, 487139081, 1051194859, 1536361717, 1815700211, 19972702321]

約数ペア:

[(1, 19972702321), (11, 1815700211), (13, 1536361717), (19, 1051194859), (41, 487139081), (143, 139669247), (209, 95563169), (247, 80861143), (451, 44285371), (533, 37472237), (779, 25638899), (1681, 11881441), (2717, 7351013), (4373, 4567277), (5863, 3406567), (8569, 2330809), (10127, 1972223), (18491, 1080131), (21853, 913957), (31939, 625339), (48103, 415207), (56849, 351329), (83087, 240383), (111397, 179293)]