21349328

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 160

約数和(自身を含む): 58662912

約数和(自身を除く): 37313584

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 31, 43, 44, 52, 56, 62, 77, 86, 88, 91, 104, 112, 124, 143, 154, 172, 176, 182, 208, 217, 248, 286, 301, 308, 341, 344, 364, 403, 434, 473, 496, 559, 572, 602, 616, 682, 688, 728, 806, 868, 946, 1001, 1118, 1144, 1204, 1232, 1333, 1364, 1456, 1612, 1736, 1892, 2002, 2236, 2288, 2387, 2408, 2666, 2728, 2821, 3224, 3311, 3472, 3784, 3913, 4004, 4433, 4472, 4774, 4816, 5332, 5456, 5642, 6149, 6448, 6622, 7568, 7826, 8008, 8866, 8944, 9331, 9548, 10664, 11284, 12298, 13244, 14663, 15652, 16016, 17329, 17732, 18662, 19096, 21328, 22568, 24596, 26488, 29326, 31031, 31304, 34658, 35464, 37324, 38192, 43043, 45136, 49192, 52976, 58652, 62062, 62608, 69316, 70928, 74648, 86086, 98384, 102641, 117304, 121303, 124124, 138632, 149296, 172172, 190619, 205282, 234608, 242606, 248248, 277264, 344344, 381238, 410564, 485212, 496496, 688688, 762476, 821128, 970424, 1334333, 1524952, 1642256, 1940848, 2668666, 3049904, 5337332, 10674664, 21349328]

約数ペア:

[(1, 21349328), (2, 10674664), (4, 5337332), (7, 3049904), (8, 2668666), (11, 1940848), (13, 1642256), (14, 1524952), (16, 1334333), (22, 970424), (26, 821128), (28, 762476), (31, 688688), (43, 496496), (44, 485212), (52, 410564), (56, 381238), (62, 344344), (77, 277264), (86, 248248), (88, 242606), (91, 234608), (104, 205282), (112, 190619), (124, 172172), (143, 149296), (154, 138632), (172, 124124), (176, 121303), (182, 117304), (208, 102641), (217, 98384), (248, 86086), (286, 74648), (301, 70928), (308, 69316), (341, 62608), (344, 62062), (364, 58652), (403, 52976), (434, 49192), (473, 45136), (496, 43043), (559, 38192), (572, 37324), (602, 35464), (616, 34658), (682, 31304), (688, 31031), (728, 29326), (806, 26488), (868, 24596), (946, 22568), (1001, 21328), (1118, 19096), (1144, 18662), (1204, 17732), (1232, 17329), (1333, 16016), (1364, 15652), (1456, 14663), (1612, 13244), (1736, 12298), (1892, 11284), (2002, 10664), (2236, 9548), (2288, 9331), (2387, 8944), (2408, 8866), (2666, 8008), (2728, 7826), (2821, 7568), (3224, 6622), (3311, 6448), (3472, 6149), (3784, 5642), (3913, 5456), (4004, 5332), (4433, 4816), (4472, 4774)]