2021031945

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{1301}}^1$

素因数の和:1663

約数の個数: 64

約数和(自身を含む): 3704762880

約数和(自身を除く): 1683730935

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 311, 333, 555, 933, 999, 1301, 1555, 1665, 2799, 3903, 4665, 4995, 6505, 8397, 11507, 11709, 13995, 19515, 34521, 35127, 41985, 48137, 57535, 58545, 103563, 144411, 172605, 175635, 240685, 310689, 404611, 433233, 517815, 722055, 1213833, 1299699, 1553445, 2023055, 2166165, 3641499, 6069165, 6498495, 10924497, 14970607, 18207495, 44911821, 54622485, 74853035, 134735463, 224559105, 404206389, 673677315, 2021031945]

約数ペア:

[(1, 2021031945), (3, 673677315), (5, 404206389), (9, 224559105), (15, 134735463), (27, 74853035), (37, 54622485), (45, 44911821), (111, 18207495), (135, 14970607), (185, 10924497), (311, 6498495), (333, 6069165), (555, 3641499), (933, 2166165), (999, 2023055), (1301, 1553445), (1555, 1299699), (1665, 1213833), (2799, 722055), (3903, 517815), (4665, 433233), (4995, 404611), (6505, 310689), (8397, 240685), (11507, 175635), (11709, 172605), (13995, 144411), (19515, 103563), (34521, 58545), (35127, 57535), (41985, 48137)]