21420872

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{22129}}^1$

素因数の和:22157

約数の個数: 24

約数和(自身を含む): 44149350

約数和(自身を除く): 22728478

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 22129, 44258, 88516, 177032, 243419, 486838, 973676, 1947352, 2677609, 5355218, 10710436, 21420872]

約数ペア:

[(1, 21420872), (2, 10710436), (4, 5355218), (8, 2677609), (11, 1947352), (22, 973676), (44, 486838), (88, 243419), (121, 177032), (242, 88516), (484, 44258), (968, 22129)]