20778853109

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1\times {\mathrm{3889}}^1$

素因数の和:4733

約数の個数: 32

約数和(自身を含む): 25610515200

約数和(自身を除く): 4831662091

約数列:

[1, 7, 17, 59, 119, 413, 761, 1003, 3889, 5327, 7021, 12937, 27223, 44899, 66113, 90559, 229451, 314293, 462791, 763283, 1606157, 2959529, 3900667, 5342981, 20716703, 27304669, 50311993, 174612211, 352183951, 1222285477, 2968407587, 20778853109]

約数ペア:

[(1, 20778853109), (7, 2968407587), (17, 1222285477), (59, 352183951), (119, 174612211), (413, 50311993), (761, 27304669), (1003, 20716703), (3889, 5342981), (5327, 3900667), (7021, 2959529), (12937, 1606157), (27223, 763283), (44899, 462791), (66113, 314293), (90559, 229451)]