20199874219

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{164831}}^1$

素因数の和:164947

約数の個数: 24

約数和(自身を含む): 24465684096

約数和(自身を除く): 4265809877

約数列:

[1, 7, 41, 49, 61, 287, 427, 2009, 2501, 2989, 17507, 122549, 164831, 1153817, 6758071, 8076719, 10054691, 47306497, 70382837, 331145479, 412242331, 492679859, 2885696317, 20199874219]

約数ペア:

[(1, 20199874219), (7, 2885696317), (41, 492679859), (49, 412242331), (61, 331145479), (287, 70382837), (427, 47306497), (2009, 10054691), (2501, 8076719), (2989, 6758071), (17507, 1153817), (122549, 164831)]