28423563

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71237}}^1$

素因数の和:71266

約数の個数: 16

約数和(自身を含む): 45592320

約数和(自身を除く): 17168757

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71237, 213711, 498659, 1353503, 1495977, 4060509, 9474521, 28423563]

約数ペア:

[(1, 28423563), (3, 9474521), (7, 4060509), (19, 1495977), (21, 1353503), (57, 498659), (133, 213711), (399, 71237)]