18536518

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 38320128

約数和(自身を除く): 19783610

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 47, 77, 91, 94, 143, 154, 182, 197, 286, 329, 394, 517, 611, 658, 1001, 1034, 1222, 1379, 2002, 2167, 2561, 2758, 3619, 4277, 4334, 5122, 6721, 7238, 8554, 9259, 13442, 15169, 17927, 18518, 28171, 30338, 35854, 47047, 56342, 64813, 94094, 101849, 120367, 129626, 197197, 203698, 240734, 394394, 712943, 842569, 1324037, 1425886, 1685138, 2648074, 9268259, 18536518]

約数ペア:

[(1, 18536518), (2, 9268259), (7, 2648074), (11, 1685138), (13, 1425886), (14, 1324037), (22, 842569), (26, 712943), (47, 394394), (77, 240734), (91, 203698), (94, 197197), (143, 129626), (154, 120367), (182, 101849), (197, 94094), (286, 64813), (329, 56342), (394, 47047), (517, 35854), (611, 30338), (658, 28171), (1001, 18518), (1034, 17927), (1222, 15169), (1379, 13442), (2002, 9259), (2167, 8554), (2561, 7238), (2758, 6721), (3619, 5122), (4277, 4334)]