18918552

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 50738400

約数和(自身を除く): 31819848

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 89, 102, 136, 178, 204, 267, 356, 408, 521, 534, 712, 1042, 1068, 1513, 1563, 2084, 2136, 3026, 3126, 4168, 4539, 6052, 6252, 8857, 9078, 12104, 12504, 17714, 18156, 26571, 35428, 36312, 46369, 53142, 70856, 92738, 106284, 139107, 185476, 212568, 278214, 370952, 556428, 788273, 1112856, 1576546, 2364819, 3153092, 4729638, 6306184, 9459276, 18918552]

約数ペア:

[(1, 18918552), (2, 9459276), (3, 6306184), (4, 4729638), (6, 3153092), (8, 2364819), (12, 1576546), (17, 1112856), (24, 788273), (34, 556428), (51, 370952), (68, 278214), (89, 212568), (102, 185476), (136, 139107), (178, 106284), (204, 92738), (267, 70856), (356, 53142), (408, 46369), (521, 36312), (534, 35428), (712, 26571), (1042, 18156), (1068, 17714), (1513, 12504), (1563, 12104), (2084, 9078), (2136, 8857), (3026, 6252), (3126, 6052), (4168, 4539)]