20000547

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 16494813

約数列:

[1, 3, 7, 9, 21, 23, 27, 43, 63, 69, 107, 129, 161, 189, 207, 301, 321, 387, 483, 621, 749, 903, 963, 989, 1161, 1449, 2247, 2461, 2709, 2889, 2967, 4347, 4601, 6741, 6923, 7383, 8127, 8901, 13803, 17227, 20223, 20769, 22149, 26703, 32207, 41409, 51681, 62307, 66447, 96621, 105823, 124227, 155043, 186921, 289863, 317469, 465129, 740761, 869589, 952407, 2222283, 2857221, 6666849, 20000547]

約数ペア:

[(1, 20000547), (3, 6666849), (7, 2857221), (9, 2222283), (21, 952407), (23, 869589), (27, 740761), (43, 465129), (63, 317469), (69, 289863), (107, 186921), (129, 155043), (161, 124227), (189, 105823), (207, 96621), (301, 66447), (321, 62307), (387, 51681), (483, 41409), (621, 32207), (749, 26703), (903, 22149), (963, 20769), (989, 20223), (1161, 17227), (1449, 13803), (2247, 8901), (2461, 8127), (2709, 7383), (2889, 6923), (2967, 6741), (4347, 4601)]