19872099

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 33388992

約数和(自身を除く): 13516893

約数列:

[1, 3, 9, 13, 17, 39, 51, 97, 103, 117, 153, 221, 291, 309, 663, 873, 927, 1261, 1339, 1649, 1751, 1989, 3783, 4017, 4947, 5253, 9991, 11349, 12051, 14841, 15759, 21437, 22763, 29973, 64311, 68289, 89919, 129883, 169847, 192933, 204867, 389649, 509541, 1168947, 1528623, 2208011, 6624033, 19872099]

約数ペア:

[(1, 19872099), (3, 6624033), (9, 2208011), (13, 1528623), (17, 1168947), (39, 509541), (51, 389649), (97, 204867), (103, 192933), (117, 169847), (153, 129883), (221, 89919), (291, 68289), (309, 64311), (663, 29973), (873, 22763), (927, 21437), (1261, 15759), (1339, 14841), (1649, 12051), (1751, 11349), (1989, 9991), (3783, 5253), (4017, 4947)]