20565986032

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21071707}}^1$

素因数の和:21071776

約数の個数: 20

約数和(自身を含む): 40499822776

約数和(自身を除く): 19933836744

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21071707, 42143414, 84286828, 168573656, 337147312, 1285374127, 2570748254, 5141496508, 10282993016, 20565986032]

約数ペア:

[(1, 20565986032), (2, 10282993016), (4, 5141496508), (8, 2570748254), (16, 1285374127), (61, 337147312), (122, 168573656), (244, 84286828), (488, 42143414), (976, 21071707)]