21000949029

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{2239}}^1$

素因数の和:2555

約数の個数: 64

約数和(自身を含む): 32890368000

約数和(自身を除く): 11889418971

約数列:

[1, 3, 9, 27, 37, 41, 111, 123, 229, 333, 369, 687, 999, 1107, 1517, 2061, 2239, 4551, 6183, 6717, 8473, 9389, 13653, 20151, 25419, 28167, 40959, 60453, 76257, 82843, 84501, 91799, 228771, 248529, 253503, 275397, 347393, 512731, 745587, 826191, 1042179, 1538193, 2236761, 2478573, 3126537, 3396563, 4614579, 9379611, 10189689, 13843737, 18971047, 21021971, 30569067, 56913141, 63065913, 91707201, 170739423, 189197739, 512218269, 567593217, 777812927, 2333438781, 7000316343, 21000949029]

約数ペア:

[(1, 21000949029), (3, 7000316343), (9, 2333438781), (27, 777812927), (37, 567593217), (41, 512218269), (111, 189197739), (123, 170739423), (229, 91707201), (333, 63065913), (369, 56913141), (687, 30569067), (999, 21021971), (1107, 18971047), (1517, 13843737), (2061, 10189689), (2239, 9379611), (4551, 4614579), (6183, 3396563), (6717, 3126537), (8473, 2478573), (9389, 2236761), (13653, 1538193), (20151, 1042179), (25419, 826191), (28167, 745587), (40959, 512731), (60453, 347393), (76257, 275397), (82843, 253503), (84501, 248529), (91799, 228771)]