18207567

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 33611760

約数和(自身を除く): 15404193

約数列:

[1, 3, 7, 9, 19, 21, 41, 49, 53, 57, 63, 123, 133, 147, 159, 171, 287, 369, 371, 399, 441, 477, 779, 861, 931, 1007, 1113, 1197, 2009, 2173, 2337, 2583, 2597, 2793, 3021, 3339, 5453, 6027, 6519, 7011, 7049, 7791, 8379, 9063, 15211, 16359, 18081, 19557, 21147, 23373, 38171, 41287, 45633, 49077, 49343, 63441, 106477, 114513, 123861, 136899, 148029, 289009, 319431, 343539, 371583, 444087, 867027, 958293, 2023063, 2601081, 6069189, 18207567]

約数ペア:

[(1, 18207567), (3, 6069189), (7, 2601081), (9, 2023063), (19, 958293), (21, 867027), (41, 444087), (49, 371583), (53, 343539), (57, 319431), (63, 289009), (123, 148029), (133, 136899), (147, 123861), (159, 114513), (171, 106477), (287, 63441), (369, 49343), (371, 49077), (399, 45633), (441, 41287), (477, 38171), (779, 23373), (861, 21147), (931, 19557), (1007, 18081), (1113, 16359), (1197, 15211), (2009, 9063), (2173, 8379), (2337, 7791), (2583, 7049), (2597, 7011), (2793, 6519), (3021, 6027), (3339, 5453)]