21168260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36497}}^1$

素因数の和:36535

約数の個数: 24

約数和(自身を含む): 45987480

約数和(自身を除く): 24819220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36497, 72994, 145988, 182485, 364970, 729940, 1058413, 2116826, 4233652, 5292065, 10584130, 21168260]

約数ペア:

[(1, 21168260), (2, 10584130), (4, 5292065), (5, 4233652), (10, 2116826), (20, 1058413), (29, 729940), (58, 364970), (116, 182485), (145, 145988), (290, 72994), (580, 36497)]