7287021

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 12939264

約数和(自身を除く): 5652243

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 107, 141, 161, 207, 321, 329, 423, 483, 749, 963, 987, 1081, 1449, 2247, 2461, 2961, 3243, 5029, 6741, 7383, 7567, 9729, 15087, 17227, 22149, 22701, 35203, 45261, 51681, 68103, 105609, 115667, 155043, 316827, 347001, 809669, 1041003, 2429007, 7287021]

約数ペア:

[(1, 7287021), (3, 2429007), (7, 1041003), (9, 809669), (21, 347001), (23, 316827), (47, 155043), (63, 115667), (69, 105609), (107, 68103), (141, 51681), (161, 45261), (207, 35203), (321, 22701), (329, 22149), (423, 17227), (483, 15087), (749, 9729), (963, 7567), (987, 7383), (1081, 6741), (1449, 5029), (2247, 3243), (2461, 2961)]