28937769

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 45382656

約数和(自身を除く): 16444887

約数列:

[1, 3, 7, 21, 67, 131, 157, 201, 393, 469, 471, 917, 1099, 1407, 2751, 3297, 8777, 10519, 20567, 26331, 31557, 61439, 61701, 73633, 143969, 184317, 220899, 431907, 1377989, 4133967, 9645923, 28937769]

約数ペア:

[(1, 28937769), (3, 9645923), (7, 4133967), (21, 1377989), (67, 431907), (131, 220899), (157, 184317), (201, 143969), (393, 73633), (469, 61701), (471, 61439), (917, 31557), (1099, 26331), (1407, 20567), (2751, 10519), (3297, 8777)]