28721266

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 50509440

約数和(自身を除く): 21788174

約数列:

[1, 2, 7, 14, 73, 146, 157, 179, 314, 358, 511, 1022, 1099, 1253, 2198, 2506, 11461, 13067, 22922, 26134, 28103, 56206, 80227, 91469, 160454, 182938, 196721, 393442, 2051519, 4103038, 14360633, 28721266]

約数ペア:

[(1, 28721266), (2, 14360633), (7, 4103038), (14, 2051519), (73, 393442), (146, 196721), (157, 182938), (179, 160454), (314, 91469), (358, 80227), (511, 56206), (1022, 28103), (1099, 26134), (1253, 22922), (2198, 13067), (2506, 11461)]