647641599

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{4049}}^1$

素因数の和:4231

約数の個数: 32

約数和(自身を含む): 975110400

約数和(自身を除く): 327468801

約数列:

[1, 3, 11, 33, 37, 111, 131, 393, 407, 1221, 1441, 4049, 4323, 4847, 12147, 14541, 44539, 53317, 133617, 149813, 159951, 449439, 530419, 1591257, 1647943, 4943829, 5834609, 17503827, 19625503, 58876509, 215880533, 647641599]

約数ペア:

[(1, 647641599), (3, 215880533), (11, 58876509), (33, 19625503), (37, 17503827), (111, 5834609), (131, 4943829), (393, 1647943), (407, 1591257), (1221, 530419), (1441, 449439), (4049, 159951), (4323, 149813), (4847, 133617), (12147, 53317), (14541, 44539)]