19470399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 29213184

約数和(自身を除く): 9742785

約数列:

[1, 3, 13, 37, 39, 103, 111, 131, 309, 393, 481, 1339, 1443, 1703, 3811, 4017, 4847, 5109, 11433, 13493, 14541, 40479, 49543, 63011, 148629, 175409, 189033, 499241, 526227, 1497723, 6490133, 19470399]

約数ペア:

[(1, 19470399), (3, 6490133), (13, 1497723), (37, 526227), (39, 499241), (103, 189033), (111, 175409), (131, 148629), (309, 63011), (393, 49543), (481, 40479), (1339, 14541), (1443, 13493), (1703, 11433), (3811, 5109), (4017, 4847)]