21000486

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269237}}^1$

素因数の和:269255

約数の個数: 16

約数和(自身を含む): 45231984

約数和(自身を除く): 24231498

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 269237, 538474, 807711, 1615422, 3500081, 7000162, 10500243, 21000486]

約数ペア:

[(1, 21000486), (2, 10500243), (3, 7000162), (6, 3500081), (13, 1615422), (26, 807711), (39, 538474), (78, 269237)]