21797776

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1400

約数の個数: 80

約数和(自身を含む): 56746368

約数和(自身を除く): 34948592

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1361, 1456, 2002, 2288, 2722, 4004, 5444, 8008, 9527, 10888, 14971, 16016, 17693, 19054, 21776, 29942, 35386, 38108, 59884, 70772, 76216, 104797, 119768, 123851, 141544, 152432, 194623, 209594, 239536, 247702, 283088, 389246, 419188, 495404, 778492, 838376, 990808, 1362361, 1556984, 1676752, 1981616, 2724722, 3113968, 5449444, 10898888, 21797776]

約数ペア:

[(1, 21797776), (2, 10898888), (4, 5449444), (7, 3113968), (8, 2724722), (11, 1981616), (13, 1676752), (14, 1556984), (16, 1362361), (22, 990808), (26, 838376), (28, 778492), (44, 495404), (52, 419188), (56, 389246), (77, 283088), (88, 247702), (91, 239536), (104, 209594), (112, 194623), (143, 152432), (154, 141544), (176, 123851), (182, 119768), (208, 104797), (286, 76216), (308, 70772), (364, 59884), (572, 38108), (616, 35386), (728, 29942), (1001, 21776), (1144, 19054), (1232, 17693), (1361, 16016), (1456, 14971), (2002, 10888), (2288, 9527), (2722, 8008), (4004, 5444)]