7640451

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 14327040

約数和(自身を除く): 6686589

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 491, 741, 819, 1197, 1473, 1729, 2223, 3437, 4419, 5187, 6383, 9329, 10311, 15561, 19149, 27987, 30933, 44681, 57447, 65303, 83961, 121277, 134043, 195909, 363831, 402129, 587727, 848939, 1091493, 2546817, 7640451]

約数ペア:

[(1, 7640451), (3, 2546817), (7, 1091493), (9, 848939), (13, 587727), (19, 402129), (21, 363831), (39, 195909), (57, 134043), (63, 121277), (91, 83961), (117, 65303), (133, 57447), (171, 44681), (247, 30933), (273, 27987), (399, 19149), (491, 15561), (741, 10311), (819, 9329), (1197, 6383), (1473, 5187), (1729, 4419), (2223, 3437)]