21283954

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{4051}}^1$

素因数の和:4161

約数の個数: 16

約数和(自身を含む): 33258816

約数和(自身を除く): 11974862

約数列:

[1, 2, 37, 71, 74, 142, 2627, 4051, 5254, 8102, 149887, 287621, 299774, 575242, 10641977, 21283954]

約数ペア:

[(1, 21283954), (2, 10641977), (37, 575242), (71, 299774), (74, 287621), (142, 149887), (2627, 8102), (4051, 5254)]