20978454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{1361}}^1$

素因数の和:1740

約数の個数: 32

約数和(自身を含む): 48116736

約数和(自身を除く): 27138282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 367, 734, 1101, 1361, 2202, 2569, 2722, 4083, 5138, 7707, 8166, 9527, 15414, 19054, 28581, 57162, 499487, 998974, 1498461, 2996922, 3496409, 6992818, 10489227, 20978454]

約数ペア:

[(1, 20978454), (2, 10489227), (3, 6992818), (6, 3496409), (7, 2996922), (14, 1498461), (21, 998974), (42, 499487), (367, 57162), (734, 28581), (1101, 19054), (1361, 15414), (2202, 9527), (2569, 8166), (2722, 7707), (4083, 5138)]