397264413

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{15991}}^1$

素因数の和:16034

約数の個数: 36

約数和(自身を含む): 667250208

約数和(自身を除く): 269985795

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 273, 507, 637, 1183, 1911, 3549, 8281, 15991, 24843, 47973, 111937, 207883, 335811, 623649, 783559, 1455181, 2350677, 2702479, 4365543, 8107437, 10186267, 18917353, 30558801, 56752059, 132421471, 397264413]

約数ペア:

[(1, 397264413), (3, 132421471), (7, 56752059), (13, 30558801), (21, 18917353), (39, 10186267), (49, 8107437), (91, 4365543), (147, 2702479), (169, 2350677), (273, 1455181), (507, 783559), (637, 623649), (1183, 335811), (1911, 207883), (3549, 111937), (8281, 47973), (15991, 24843)]