21435536

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13007}}^1$

素因数の和:13118

約数の個数: 20

約数和(自身を含む): 41937792

約数和(自身を除く): 20502256

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13007, 26014, 52028, 104056, 208112, 1339721, 2679442, 5358884, 10717768, 21435536]

約数ペア:

[(1, 21435536), (2, 10717768), (4, 5358884), (8, 2679442), (16, 1339721), (103, 208112), (206, 104056), (412, 52028), (824, 26014), (1648, 13007)]