21457804

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1303}}^1$

素因数の和:1509

約数の個数: 24

約数和(自身を含む): 39432960

約数和(自身を除く): 17975156

約数列:

[1, 2, 4, 23, 46, 92, 179, 358, 716, 1303, 2606, 4117, 5212, 8234, 16468, 29969, 59938, 119876, 233237, 466474, 932948, 5364451, 10728902, 21457804]

約数ペア:

[(1, 21457804), (2, 10728902), (4, 5364451), (23, 932948), (46, 466474), (92, 233237), (179, 119876), (358, 59938), (716, 29969), (1303, 16468), (2606, 8234), (4117, 5212)]