56987721

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 99800064

約数和(自身を除く): 42812343

約数列:

[1, 3, 7, 9, 21, 23, 63, 67, 69, 161, 201, 207, 469, 483, 587, 603, 1407, 1449, 1541, 1761, 4109, 4221, 4623, 5283, 10787, 12327, 13501, 13869, 32361, 36981, 39329, 40503, 94507, 97083, 117987, 121509, 275303, 283521, 353961, 825909, 850563, 904567, 2477727, 2713701, 6331969, 8141103, 18995907, 56987721]

約数ペア:

[(1, 56987721), (3, 18995907), (7, 8141103), (9, 6331969), (21, 2713701), (23, 2477727), (63, 904567), (67, 850563), (69, 825909), (161, 353961), (201, 283521), (207, 275303), (469, 121509), (483, 117987), (587, 97083), (603, 94507), (1407, 40503), (1449, 39329), (1541, 36981), (1761, 32361), (4109, 13869), (4221, 13501), (4623, 12327), (5283, 10787)]