27798729

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 46785600

約数和(自身を除く): 18986871

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 259, 269, 399, 703, 777, 807, 931, 1813, 1883, 2109, 2793, 4921, 5111, 5439, 5649, 9953, 13181, 14763, 15333, 29859, 34447, 35777, 39543, 69671, 103341, 107331, 189107, 209013, 250439, 487697, 567321, 751317, 1323749, 1463091, 3971247, 9266243, 27798729]

約数ペア:

[(1, 27798729), (3, 9266243), (7, 3971247), (19, 1463091), (21, 1323749), (37, 751317), (49, 567321), (57, 487697), (111, 250439), (133, 209013), (147, 189107), (259, 107331), (269, 103341), (399, 69671), (703, 39543), (777, 35777), (807, 34447), (931, 29859), (1813, 15333), (1883, 14763), (2109, 13181), (2793, 9953), (4921, 5649), (5111, 5439)]