20997888

素因数分解:

$2^8\times 3^1\times {\mathrm{19}}^1\times {\mathrm{1439}}^1$

素因数の和:1477

約数の個数: 72

約数和(自身を含む): 58867200

約数和(自身を除く): 37869312

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 64, 76, 96, 114, 128, 152, 192, 228, 256, 304, 384, 456, 608, 768, 912, 1216, 1439, 1824, 2432, 2878, 3648, 4317, 4864, 5756, 7296, 8634, 11512, 14592, 17268, 23024, 27341, 34536, 46048, 54682, 69072, 82023, 92096, 109364, 138144, 164046, 184192, 218728, 276288, 328092, 368384, 437456, 552576, 656184, 874912, 1105152, 1312368, 1749824, 2624736, 3499648, 5249472, 6999296, 10498944, 20997888]

約数ペア:

[(1, 20997888), (2, 10498944), (3, 6999296), (4, 5249472), (6, 3499648), (8, 2624736), (12, 1749824), (16, 1312368), (19, 1105152), (24, 874912), (32, 656184), (38, 552576), (48, 437456), (57, 368384), (64, 328092), (76, 276288), (96, 218728), (114, 184192), (128, 164046), (152, 138144), (192, 109364), (228, 92096), (256, 82023), (304, 69072), (384, 54682), (456, 46048), (608, 34536), (768, 27341), (912, 23024), (1216, 17268), (1439, 14592), (1824, 11512), (2432, 8634), (2878, 7296), (3648, 5756), (4317, 4864)]