21728050645

素因数分解:

$5^1\times 7^2\times {\mathrm{673}}^1\times {\mathrm{131777}}^1$

素因数の和:132469

約数の個数: 24

約数和(自身を含む): 30375883224

約数和(自身を除く): 8647832579

約数列:

[1, 5, 7, 35, 49, 245, 673, 3365, 4711, 23555, 32977, 131777, 164885, 658885, 922439, 4612195, 6457073, 32285365, 88685921, 443429605, 620801447, 3104007235, 4345610129, 21728050645]

約数ペア:

[(1, 21728050645), (5, 4345610129), (7, 3104007235), (35, 620801447), (49, 443429605), (245, 88685921), (673, 32285365), (3365, 6457073), (4711, 4612195), (23555, 922439), (32977, 658885), (131777, 164885)]