21094788

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:697

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39869052

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 19, 22, 26, 33, 38, 39, 44, 52, 57, 66, 76, 78, 114, 132, 143, 156, 209, 228, 247, 286, 418, 429, 494, 572, 627, 647, 741, 836, 858, 988, 1254, 1294, 1482, 1716, 1941, 2508, 2588, 2717, 2964, 3882, 5434, 7117, 7764, 8151, 8411, 10868, 12293, 14234, 16302, 16822, 21351, 24586, 25233, 28468, 32604, 33644, 36879, 42702, 49172, 50466, 73758, 85404, 92521, 100932, 135223, 147516, 159809, 185042, 270446, 277563, 319618, 370084, 405669, 479427, 540892, 555126, 639236, 811338, 958854, 1110252, 1622676, 1757899, 1917708, 3515798, 5273697, 7031596, 10547394, 21094788]

約数ペア:

[(1, 21094788), (2, 10547394), (3, 7031596), (4, 5273697), (6, 3515798), (11, 1917708), (12, 1757899), (13, 1622676), (19, 1110252), (22, 958854), (26, 811338), (33, 639236), (38, 555126), (39, 540892), (44, 479427), (52, 405669), (57, 370084), (66, 319618), (76, 277563), (78, 270446), (114, 185042), (132, 159809), (143, 147516), (156, 135223), (209, 100932), (228, 92521), (247, 85404), (286, 73758), (418, 50466), (429, 49172), (494, 42702), (572, 36879), (627, 33644), (647, 32604), (741, 28468), (836, 25233), (858, 24586), (988, 21351), (1254, 16822), (1294, 16302), (1482, 14234), (1716, 12293), (1941, 10868), (2508, 8411), (2588, 8151), (2717, 7764), (2964, 7117), (3882, 5434)]