21815352

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:502

約数の個数: 128

約数和(自身を含む): 69249600

約数和(自身を除く): 47434248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 27, 34, 36, 39, 51, 52, 54, 68, 72, 78, 102, 104, 108, 117, 136, 153, 156, 204, 216, 221, 234, 306, 312, 351, 408, 442, 457, 459, 468, 612, 663, 702, 884, 914, 918, 936, 1224, 1326, 1371, 1404, 1768, 1828, 1836, 1989, 2652, 2742, 2808, 3656, 3672, 3978, 4113, 5304, 5484, 5941, 5967, 7769, 7956, 8226, 10968, 11882, 11934, 12339, 15538, 15912, 16452, 17823, 23307, 23764, 23868, 24678, 31076, 32904, 35646, 46614, 47528, 47736, 49356, 53469, 62152, 69921, 71292, 93228, 98712, 100997, 106938, 139842, 142584, 160407, 186456, 201994, 209763, 213876, 279684, 302991, 320814, 403988, 419526, 427752, 559368, 605982, 641628, 807976, 839052, 908973, 1211964, 1283256, 1678104, 1817946, 2423928, 2726919, 3635892, 5453838, 7271784, 10907676, 21815352]

約数ペア:

[(1, 21815352), (2, 10907676), (3, 7271784), (4, 5453838), (6, 3635892), (8, 2726919), (9, 2423928), (12, 1817946), (13, 1678104), (17, 1283256), (18, 1211964), (24, 908973), (26, 839052), (27, 807976), (34, 641628), (36, 605982), (39, 559368), (51, 427752), (52, 419526), (54, 403988), (68, 320814), (72, 302991), (78, 279684), (102, 213876), (104, 209763), (108, 201994), (117, 186456), (136, 160407), (153, 142584), (156, 139842), (204, 106938), (216, 100997), (221, 98712), (234, 93228), (306, 71292), (312, 69921), (351, 62152), (408, 53469), (442, 49356), (457, 47736), (459, 47528), (468, 46614), (612, 35646), (663, 32904), (702, 31076), (884, 24678), (914, 23868), (918, 23764), (936, 23307), (1224, 17823), (1326, 16452), (1371, 15912), (1404, 15538), (1768, 12339), (1828, 11934), (1836, 11882), (1989, 10968), (2652, 8226), (2742, 7956), (2808, 7769), (3656, 5967), (3672, 5941), (3978, 5484), (4113, 5304)]