20107555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4357}}^1$

素因数の和:4446

約数の個数: 16

約数和(自身を含む): 26357184

約数和(自身を除く): 6249629

約数列:

[1, 5, 13, 65, 71, 355, 923, 4357, 4615, 21785, 56641, 283205, 309347, 1546735, 4021511, 20107555]

約数ペア:

[(1, 20107555), (5, 4021511), (13, 1546735), (65, 309347), (71, 283205), (355, 56641), (923, 21785), (4357, 4615)]