21306376

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 51854040

約数和(自身を除く): 30547664

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 37, 49, 52, 56, 74, 91, 98, 104, 113, 148, 182, 196, 226, 259, 296, 364, 392, 452, 481, 518, 637, 728, 791, 904, 962, 1036, 1274, 1469, 1582, 1813, 1924, 2072, 2548, 2938, 3164, 3367, 3626, 3848, 4181, 5096, 5537, 5876, 6328, 6734, 7252, 8362, 10283, 11074, 11752, 13468, 14504, 16724, 20566, 22148, 23569, 26936, 29267, 33448, 41132, 44296, 47138, 54353, 58534, 71981, 82264, 94276, 108706, 117068, 143962, 188552, 204869, 217412, 234136, 287924, 380471, 409738, 434824, 575848, 760942, 819476, 1521884, 1638952, 2663297, 3043768, 5326594, 10653188, 21306376]

約数ペア:

[(1, 21306376), (2, 10653188), (4, 5326594), (7, 3043768), (8, 2663297), (13, 1638952), (14, 1521884), (26, 819476), (28, 760942), (37, 575848), (49, 434824), (52, 409738), (56, 380471), (74, 287924), (91, 234136), (98, 217412), (104, 204869), (113, 188552), (148, 143962), (182, 117068), (196, 108706), (226, 94276), (259, 82264), (296, 71981), (364, 58534), (392, 54353), (452, 47138), (481, 44296), (518, 41132), (637, 33448), (728, 29267), (791, 26936), (904, 23569), (962, 22148), (1036, 20566), (1274, 16724), (1469, 14504), (1582, 13468), (1813, 11752), (1924, 11074), (2072, 10283), (2548, 8362), (2938, 7252), (3164, 6734), (3367, 6328), (3626, 5876), (3848, 5537), (4181, 5096)]