28477827

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 50901760

約数和(自身を除く): 22423933

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 399, 643, 703, 777, 1197, 1929, 2109, 2331, 4501, 4921, 5787, 6327, 12217, 13503, 14763, 23791, 36651, 40509, 44289, 71373, 85519, 109953, 166537, 214119, 256557, 452029, 499611, 769671, 1356087, 1498833, 3164203, 4068261, 9492609, 28477827]

約数ペア:

[(1, 28477827), (3, 9492609), (7, 4068261), (9, 3164203), (19, 1498833), (21, 1356087), (37, 769671), (57, 499611), (63, 452029), (111, 256557), (133, 214119), (171, 166537), (259, 109953), (333, 85519), (399, 71373), (643, 44289), (703, 40509), (777, 36651), (1197, 23791), (1929, 14763), (2109, 13503), (2331, 12217), (4501, 6327), (4921, 5787)]