21941080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3407}}^1$

素因数の和:3448

約数の個数: 64

約数和(自身を含む): 58890240

約数和(自身を除く): 36949160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3407, 6440, 6814, 13628, 17035, 23849, 27256, 34070, 47698, 68140, 78361, 95396, 119245, 136280, 156722, 190792, 238490, 313444, 391805, 476980, 548527, 626888, 783610, 953960, 1097054, 1567220, 2194108, 2742635, 3134440, 4388216, 5485270, 10970540, 21941080]

約数ペア:

[(1, 21941080), (2, 10970540), (4, 5485270), (5, 4388216), (7, 3134440), (8, 2742635), (10, 2194108), (14, 1567220), (20, 1097054), (23, 953960), (28, 783610), (35, 626888), (40, 548527), (46, 476980), (56, 391805), (70, 313444), (92, 238490), (115, 190792), (140, 156722), (161, 136280), (184, 119245), (230, 95396), (280, 78361), (322, 68140), (460, 47698), (644, 34070), (805, 27256), (920, 23849), (1288, 17035), (1610, 13628), (3220, 6814), (3407, 6440)]