21087162

素因数分解:

$2^1\times 3^3\times {\mathrm{390503}}^1$

素因数の和:390514

約数の個数: 16

約数和(自身を含む): 46860480

約数和(自身を除く): 25773318

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390503, 781006, 1171509, 2343018, 3514527, 7029054, 10543581, 21087162]

約数ペア:

[(1, 21087162), (2, 10543581), (3, 7029054), (6, 3514527), (9, 2343018), (18, 1171509), (27, 781006), (54, 390503)]