21139916380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1434187}}^1$

素因数の和:1434274

約数の個数: 48

約数和(自身を含む): 49152491136

約数和(自身を除く): 28012574756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 1434187, 2868374, 5736748, 7170935, 14341870, 15776057, 28683740, 31552114, 63104228, 78880285, 96090529, 157760570, 192181058, 315521140, 384362116, 480452645, 960905290, 1056995819, 1921810580, 2113991638, 4227983276, 5284979095, 10569958190, 21139916380]

約数ペア:

[(1, 21139916380), (2, 10569958190), (4, 5284979095), (5, 4227983276), (10, 2113991638), (11, 1921810580), (20, 1056995819), (22, 960905290), (44, 480452645), (55, 384362116), (67, 315521140), (110, 192181058), (134, 157760570), (220, 96090529), (268, 78880285), (335, 63104228), (670, 31552114), (737, 28683740), (1340, 15776057), (1474, 14341870), (2948, 7170935), (3685, 5736748), (7370, 2868374), (14740, 1434187)]