18986373

素因数分解:

$3^3\times 7^2\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 33269760

約数和(自身を除く): 14283387

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 113, 127, 147, 189, 339, 381, 441, 791, 889, 1017, 1143, 1323, 2373, 2667, 3051, 3429, 5537, 6223, 7119, 8001, 14351, 16611, 18669, 21357, 24003, 43053, 49833, 56007, 100457, 129159, 149499, 168021, 301371, 387477, 703199, 904113, 2109597, 2712339, 6328791, 18986373]

約数ペア:

[(1, 18986373), (3, 6328791), (7, 2712339), (9, 2109597), (21, 904113), (27, 703199), (49, 387477), (63, 301371), (113, 168021), (127, 149499), (147, 129159), (189, 100457), (339, 56007), (381, 49833), (441, 43053), (791, 24003), (889, 21357), (1017, 18669), (1143, 16611), (1323, 14351), (2373, 8001), (2667, 7119), (3051, 6223), (3429, 5537)]