21434440

素因数分解:

$2^3\times 5^1\times {\mathrm{535861}}^1$

素因数の和:535872

約数の個数: 16

約数和(自身を含む): 48227580

約数和(自身を除く): 26793140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 535861, 1071722, 2143444, 2679305, 4286888, 5358610, 10717220, 21434440]

約数ペア:

[(1, 21434440), (2, 10717220), (4, 5358610), (5, 4286888), (8, 2679305), (10, 2143444), (20, 1071722), (40, 535861)]