21947740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8377}}^1$

素因数の和:8517

約数の個数: 24

約数和(自身を含む): 46447632

約数和(自身を除く): 24499892

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8377, 16754, 33508, 41885, 83770, 167540, 1097387, 2194774, 4389548, 5486935, 10973870, 21947740]

約数ペア:

[(1, 21947740), (2, 10973870), (4, 5486935), (5, 4389548), (10, 2194774), (20, 1097387), (131, 167540), (262, 83770), (524, 41885), (655, 33508), (1310, 16754), (2620, 8377)]