291489279

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 417331200

約数和(自身を除く): 125841921

約数列:

[1, 3, 19, 57, 103, 131, 309, 379, 393, 1137, 1957, 2489, 5871, 7201, 7467, 13493, 21603, 39037, 40479, 49649, 117111, 148947, 256367, 741703, 769101, 943331, 2225109, 2829993, 5113847, 15341541, 97163093, 291489279]

約数ペア:

[(1, 291489279), (3, 97163093), (19, 15341541), (57, 5113847), (103, 2829993), (131, 2225109), (309, 943331), (379, 769101), (393, 741703), (1137, 256367), (1957, 148947), (2489, 117111), (5871, 49649), (7201, 40479), (7467, 39037), (13493, 21603)]