78780219

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 123563520

約数和(自身を除く): 44783301

約数列:

[1, 3, 7, 21, 61, 89, 183, 267, 427, 623, 691, 1281, 1869, 2073, 4837, 5429, 14511, 16287, 38003, 42151, 61499, 114009, 126453, 184497, 295057, 430493, 885171, 1291479, 3751439, 11254317, 26260073, 78780219]

約数ペア:

[(1, 78780219), (3, 26260073), (7, 11254317), (21, 3751439), (61, 1291479), (89, 885171), (183, 430493), (267, 295057), (427, 184497), (623, 126453), (691, 114009), (1281, 61499), (1869, 42151), (2073, 38003), (4837, 16287), (5429, 14511)]