21263672

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61813}}^1$

素因数の和:61862

約数の個数: 16

約数和(自身を含む): 40797240

約数和(自身を除く): 19533568

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61813, 123626, 247252, 494504, 2657959, 5315918, 10631836, 21263672]

約数ペア:

[(1, 21263672), (2, 10631836), (4, 5315918), (8, 2657959), (43, 494504), (86, 247252), (172, 123626), (344, 61813)]