21081052

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{673}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 38045952

約数和(自身を除く): 16964900

約数列:

[1, 2, 4, 41, 82, 164, 191, 382, 673, 764, 1346, 2692, 7831, 15662, 27593, 31324, 55186, 110372, 128543, 257086, 514172, 5270263, 10540526, 21081052]

約数ペア:

[(1, 21081052), (2, 10540526), (4, 5270263), (41, 514172), (82, 257086), (164, 128543), (191, 110372), (382, 55186), (673, 31324), (764, 27593), (1346, 15662), (2692, 7831)]