20549984

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7057}}^1$

素因数の和:7087

約数の個数: 48

約数和(自身を含む): 49801248

約数和(自身を除く): 29251264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7057, 14114, 28228, 49399, 56456, 91741, 98798, 112912, 183482, 197596, 225824, 366964, 395192, 642187, 733928, 790384, 1284374, 1467856, 1580768, 2568748, 2935712, 5137496, 10274992, 20549984]

約数ペア:

[(1, 20549984), (2, 10274992), (4, 5137496), (7, 2935712), (8, 2568748), (13, 1580768), (14, 1467856), (16, 1284374), (26, 790384), (28, 733928), (32, 642187), (52, 395192), (56, 366964), (91, 225824), (104, 197596), (112, 183482), (182, 112912), (208, 98798), (224, 91741), (364, 56456), (416, 49399), (728, 28228), (1456, 14114), (2912, 7057)]