20512761969

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97553}}^1$

素因数の和:97630

約数の個数: 64

約数和(自身を含む): 35962306560

約数和(自身を除く): 15449544591

約数列:

[1, 3, 7, 17, 19, 21, 31, 51, 57, 93, 119, 133, 217, 323, 357, 399, 527, 589, 651, 969, 1581, 1767, 2261, 3689, 4123, 6783, 10013, 11067, 12369, 30039, 70091, 97553, 210273, 292659, 682871, 1658401, 1853507, 2048613, 3024143, 4975203, 5560521, 9072429, 11608807, 12974549, 21169001, 31509619, 34826421, 38923647, 51410431, 57458717, 63507003, 94528857, 154231293, 172376151, 220567333, 359873017, 402211019, 661701999, 976798189, 1079619051, 1206633057, 2930394567, 6837587323, 20512761969]

約数ペア:

[(1, 20512761969), (3, 6837587323), (7, 2930394567), (17, 1206633057), (19, 1079619051), (21, 976798189), (31, 661701999), (51, 402211019), (57, 359873017), (93, 220567333), (119, 172376151), (133, 154231293), (217, 94528857), (323, 63507003), (357, 57458717), (399, 51410431), (527, 38923647), (589, 34826421), (651, 31509619), (969, 21169001), (1581, 12974549), (1767, 11608807), (2261, 9072429), (3689, 5560521), (4123, 4975203), (6783, 3024143), (10013, 2048613), (11067, 1853507), (12369, 1658401), (30039, 682871), (70091, 292659), (97553, 210273)]