21136544

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 29666656

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 32, 44, 52, 62, 88, 104, 124, 143, 149, 176, 208, 248, 286, 298, 341, 352, 403, 416, 496, 572, 596, 682, 806, 992, 1144, 1192, 1364, 1612, 1639, 1937, 2288, 2384, 2728, 3224, 3278, 3874, 4433, 4576, 4619, 4768, 5456, 6448, 6556, 7748, 8866, 9238, 10912, 12896, 13112, 15496, 17732, 18476, 21307, 26224, 30992, 35464, 36952, 42614, 50809, 52448, 60047, 61984, 70928, 73904, 85228, 101618, 120094, 141856, 147808, 170456, 203236, 240188, 340912, 406472, 480376, 660517, 681824, 812944, 960752, 1321034, 1625888, 1921504, 2642068, 5284136, 10568272, 21136544]

約数ペア:

[(1, 21136544), (2, 10568272), (4, 5284136), (8, 2642068), (11, 1921504), (13, 1625888), (16, 1321034), (22, 960752), (26, 812944), (31, 681824), (32, 660517), (44, 480376), (52, 406472), (62, 340912), (88, 240188), (104, 203236), (124, 170456), (143, 147808), (149, 141856), (176, 120094), (208, 101618), (248, 85228), (286, 73904), (298, 70928), (341, 61984), (352, 60047), (403, 52448), (416, 50809), (496, 42614), (572, 36952), (596, 35464), (682, 30992), (806, 26224), (992, 21307), (1144, 18476), (1192, 17732), (1364, 15496), (1612, 13112), (1639, 12896), (1937, 10912), (2288, 9238), (2384, 8866), (2728, 7748), (3224, 6556), (3278, 6448), (3874, 5456), (4433, 4768), (4576, 4619)]