18687669

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 34406400

約数和(自身を除く): 15718731

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 127, 143, 147, 231, 273, 343, 381, 429, 539, 637, 889, 1001, 1029, 1397, 1617, 1651, 1911, 2667, 3003, 3773, 4191, 4459, 4953, 6223, 7007, 9779, 11319, 11557, 13377, 18161, 18669, 21021, 29337, 34671, 43561, 49049, 54483, 68453, 80899, 127127, 130683, 147147, 205359, 242697, 381381, 479171, 566293, 889889, 1437513, 1698879, 2669667, 6229223, 18687669]

約数ペア:

[(1, 18687669), (3, 6229223), (7, 2669667), (11, 1698879), (13, 1437513), (21, 889889), (33, 566293), (39, 479171), (49, 381381), (77, 242697), (91, 205359), (127, 147147), (143, 130683), (147, 127127), (231, 80899), (273, 68453), (343, 54483), (381, 49049), (429, 43561), (539, 34671), (637, 29337), (889, 21021), (1001, 18669), (1029, 18161), (1397, 13377), (1617, 11557), (1651, 11319), (1911, 9779), (2667, 7007), (3003, 6223), (3773, 4953), (4191, 4459)]