21001816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238657}}^1$

素因数の和:238674

約数の個数: 16

約数和(自身を含む): 42958440

約数和(自身を除く): 21956624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238657, 477314, 954628, 1909256, 2625227, 5250454, 10500908, 21001816]

約数ペア:

[(1, 21001816), (2, 10500908), (4, 5250454), (8, 2625227), (11, 1909256), (22, 954628), (44, 477314), (88, 238657)]