21679112

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 50709120

約数和(自身を除く): 29030008

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 97, 104, 182, 194, 307, 364, 388, 614, 679, 728, 776, 1228, 1261, 1358, 2149, 2456, 2522, 2716, 3991, 4298, 5044, 5432, 7982, 8596, 8827, 10088, 15964, 17192, 17654, 27937, 29779, 31928, 35308, 55874, 59558, 70616, 111748, 119116, 208453, 223496, 238232, 387127, 416906, 774254, 833812, 1548508, 1667624, 2709889, 3097016, 5419778, 10839556, 21679112]

約数ペア:

[(1, 21679112), (2, 10839556), (4, 5419778), (7, 3097016), (8, 2709889), (13, 1667624), (14, 1548508), (26, 833812), (28, 774254), (52, 416906), (56, 387127), (91, 238232), (97, 223496), (104, 208453), (182, 119116), (194, 111748), (307, 70616), (364, 59558), (388, 55874), (614, 35308), (679, 31928), (728, 29779), (776, 27937), (1228, 17654), (1261, 17192), (1358, 15964), (2149, 10088), (2456, 8827), (2522, 8596), (2716, 7982), (3991, 5432), (4298, 5044)]