51807231

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 90574848

約数和(自身を除く): 38767617

約数列:

[1, 3, 7, 9, 21, 31, 41, 63, 93, 123, 217, 279, 287, 369, 647, 651, 861, 1271, 1941, 1953, 2583, 3813, 4529, 5823, 8897, 11439, 13587, 20057, 26527, 26691, 40761, 60171, 79581, 80073, 140399, 180513, 185689, 238743, 421197, 557067, 822337, 1263591, 1671201, 2467011, 5756359, 7401033, 17269077, 51807231]

約数ペア:

[(1, 51807231), (3, 17269077), (7, 7401033), (9, 5756359), (21, 2467011), (31, 1671201), (41, 1263591), (63, 822337), (93, 557067), (123, 421197), (217, 238743), (279, 185689), (287, 180513), (369, 140399), (647, 80073), (651, 79581), (861, 60171), (1271, 40761), (1941, 26691), (1953, 26527), (2583, 20057), (3813, 13587), (4529, 11439), (5823, 8897)]