20445986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 35164800

約数和(自身を除く): 14718814

約数列:

[1, 2, 11, 22, 29, 58, 73, 146, 319, 439, 638, 803, 878, 1606, 2117, 4234, 4829, 9658, 12731, 23287, 25462, 32047, 46574, 64094, 140041, 280082, 352517, 705034, 929363, 1858726, 10222993, 20445986]

約数ペア:

[(1, 20445986), (2, 10222993), (11, 1858726), (22, 929363), (29, 705034), (58, 352517), (73, 280082), (146, 140041), (319, 64094), (439, 46574), (638, 32047), (803, 25462), (878, 23287), (1606, 12731), (2117, 9658), (4234, 4829)]