18978408

素因数分解:

$2^3\times 3^3\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2199

約数の個数: 64

約数和(自身を含む): 54028800

約数和(自身を除く): 35050392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 41, 54, 72, 82, 108, 123, 164, 216, 246, 328, 369, 492, 738, 984, 1107, 1476, 2143, 2214, 2952, 4286, 4428, 6429, 8572, 8856, 12858, 17144, 19287, 25716, 38574, 51432, 57861, 77148, 87863, 115722, 154296, 175726, 231444, 263589, 351452, 462888, 527178, 702904, 790767, 1054356, 1581534, 2108712, 2372301, 3163068, 4744602, 6326136, 9489204, 18978408]

約数ペア:

[(1, 18978408), (2, 9489204), (3, 6326136), (4, 4744602), (6, 3163068), (8, 2372301), (9, 2108712), (12, 1581534), (18, 1054356), (24, 790767), (27, 702904), (36, 527178), (41, 462888), (54, 351452), (72, 263589), (82, 231444), (108, 175726), (123, 154296), (164, 115722), (216, 87863), (246, 77148), (328, 57861), (369, 51432), (492, 38574), (738, 25716), (984, 19287), (1107, 17144), (1476, 12858), (2143, 8856), (2214, 8572), (2952, 6429), (4286, 4428)]