207910521

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 402554880

約数和(自身を除く): 194644359

約数列:

[1, 3, 7, 9, 13, 19, 21, 31, 39, 57, 63, 91, 93, 117, 133, 171, 217, 247, 273, 279, 399, 403, 431, 589, 651, 741, 819, 1197, 1209, 1293, 1729, 1767, 1953, 2223, 2821, 3017, 3627, 3879, 4123, 5187, 5301, 5603, 7657, 8189, 8463, 9051, 12369, 13361, 15561, 16809, 22971, 24567, 25389, 27153, 37107, 39221, 40083, 50427, 53599, 57323, 68913, 73701, 93527, 106457, 117663, 120249, 160797, 171969, 173693, 253859, 280581, 319371, 352989, 482391, 515907, 521079, 745199, 761577, 841743, 958113, 1215851, 1563237, 1777013, 2235597, 2284731, 3300167, 3647553, 5331039, 6706791, 9900501, 10942659, 15993117, 23101169, 29701503, 69303507, 207910521]

約数ペア:

[(1, 207910521), (3, 69303507), (7, 29701503), (9, 23101169), (13, 15993117), (19, 10942659), (21, 9900501), (31, 6706791), (39, 5331039), (57, 3647553), (63, 3300167), (91, 2284731), (93, 2235597), (117, 1777013), (133, 1563237), (171, 1215851), (217, 958113), (247, 841743), (273, 761577), (279, 745199), (399, 521079), (403, 515907), (431, 482391), (589, 352989), (651, 319371), (741, 280581), (819, 253859), (1197, 173693), (1209, 171969), (1293, 160797), (1729, 120249), (1767, 117663), (1953, 106457), (2223, 93527), (2821, 73701), (3017, 68913), (3627, 57323), (3879, 53599), (4123, 50427), (5187, 40083), (5301, 39221), (5603, 37107), (7657, 27153), (8189, 25389), (8463, 24567), (9051, 22971), (12369, 16809), (13361, 15561)]