18051698637

素因数分解:

$3^4\times 7^3\times {\mathrm{649739}}^1$

素因数の和:649772

約数の個数: 40

約数和(自身を含む): 31447416000

約数和(自身を除く): 13395717363

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 3087, 3969, 9261, 27783, 649739, 1949217, 4548173, 5847651, 13644519, 17542953, 31837211, 40933557, 52628859, 95511633, 122800671, 222860477, 286534899, 368402013, 668581431, 859604697, 2005744293, 2578814091, 6017232879, 18051698637]

約数ペア:

[(1, 18051698637), (3, 6017232879), (7, 2578814091), (9, 2005744293), (21, 859604697), (27, 668581431), (49, 368402013), (63, 286534899), (81, 222860477), (147, 122800671), (189, 95511633), (343, 52628859), (441, 40933557), (567, 31837211), (1029, 17542953), (1323, 13644519), (3087, 5847651), (3969, 4548173), (9261, 1949217), (27783, 649739)]